RobustReviews
RobustReviews
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Rare Format: Philips’ Incredible 8 Hour CD Player!
www.patreon.com/c/RobustReviews Please join the "Pink Helmet Party" if you enjoy this sort of lark! I'll love ya' forever!
My eternal gratitude to the folks at gadgetmuseum.org.uk for lending this to me!
www.youtube.com/@N2EWSRadio Also please subscribe to N2EWSRadio on here if you've got an itchy "Ham Gland" - he's a good chap doing good things!
ua-cam.com/video/Su9_i1UOz9U/v-deo.html Akash Murthy has put some hard yards in if you need a refresher on digital audio, I'll leave this hear if you want some details as this is a great series.
The train image is from here, used under Creative Commons: en.wikipedia.org/wiki/File:20134_%26_20075_at_Ryecroft_Junction.jpg
So, Philips did make an eight hour CD player! Yep in 1989 Philips launched this background music system that offered 8 hours on a single CD, of course there's something a bit unusual going on. It's of course a CD-i player, well kinda, not entirely stictly but that's what I'm here for.
There will be a part 2 to this as things didn't go quite to plan, I can't wait to see you again.
Thanks for watching! Andy
PS. My apologies to Michael McDonald!
🎵 Music licensed from Lickd. The biggest mainstream and stock music platform for content creators.
Ride Like the Wind (2019 Remaster) by Christopher Cross, t.lickd.co/O1Njqjwj9Wp License ID: RXqoxE6YO94
If you want to use music from famous artists, try Lickd to get track credits and unlimited stock music: app.lickd.co/r/3322f3329506458290d56b31763925a3
Переглядів: 4 413

Відео

The Rare Sony Floppy Format You’ve Never Heard Of
Переглядів 10 тис.14 днів тому
This was originally on my other channel "The Museum of Modern Toss" which is now closing as after two years and lot of effort it has yielded no more than a few dozen views and subs.... All off my old tech' stuff will be going on here now, this channel will be a mix of radio stuff and retrotech. Original description Well what the dickens is this? A broadcast video recorder that records still ima...
Testing The PNI Escort HP6500 CB Radio
Переглядів 54021 день тому
🙏 www.patreon.com/c/RobustReviews Join the Pink Helmet Party and keep my reviews impartial and away from all influence. I do not accept freebies, I do not advertise on my channel and I no longer use affiliate links. So, what's this. It's the most budget #cbradio that I could find on Amazon UK (you can pick it up in loads of places) - it's also sold as a Thunderpole and no doubt other brands. It...
TIDRadio H3 vs H8 - Which One is Worth Buying?
Переглядів 2,3 тис.Місяць тому
Chuck me $2 a month and keep these reviews free and impartial, away from ALL manufacturer or vendor influence: patreon.com/RobustReviews Simply, just get an TIDRadio TD-H3 if that saves you some time (it's seriously liberating to be non-affiliated and non-monitised, I can just TELL you rather than edging you for 30 minutes boring on and on about nothing) - it's alright. I don't think it's worth...
Should You Buy A Baofeng UV5R in 2024?
Переглядів 8 тис.2 місяці тому
🛒 Get a $12 Baofeng UV5R here! s.click.aliexpress.com/e/_DERW2dd 🛒Don't forget to buy a programming cable too, I use this one and it works fine for me on Windows 10/11: s.click.aliexpress.com/e/_DBZ8c1d 💲 Patreon - patreon.com/RobustReviews Wondering if the Baofeng UV5R is still woth a look in 2024? I make the case that YES, if you're a beginner there is still not one single better handheld che...
Awesome Find: Zastone UV008 Wideband Secure DMR Radio
Переглядів 1 тис.2 місяці тому
🛒 Get a Zastone UV008 here! s.click.aliexpress.com/e/_DciSMsx 💲 Patreon - patreon.com/RobustReviews Not many radios deliver this level of value! If you're an amateur radio enthusiast or a prepper on the hunt for an outstanding yet affordable handheld radio, look no further than this gem! With 256AES encryption, airband receive, 200-520MHz receive and transmit, plus built-in GPS with location sh...
Change this DMR Setting before SHTF
Переглядів 7973 місяці тому
In this crucial video, we dive into crucial settings that you must check to ensure your DMR radio remains a reliable tool for emergency communications. If you're serious about prepping and want to be ready for any SHTF situation, understanding your digital radio's weakness is vital. Whether you're a seasoned ham radio operator or just starting with digital communications, these often overlooked...
Baofeng UV 25 Destruction Testing | Is the UV25 Waterproof? | Is It really a tactical radio?
Переглядів 1,9 тис.4 місяці тому
Click below for product links! 💲 Patreon - patreon.com/RobustReviews 🛒Buy a Baofeng UV-25 here, I get 7% of the sale value... s.click.aliexpress.com/e/_DdD3OVN ⚖️ Get a pocket balance here - again I get 7% if you buy one! s.click.aliexpress.com/e/_DeOalXZ See the interface explained properly by GadgetTalk: ua-cam.com/video/JUv1f7zCYTQ/v-deo.htmlsi=gLn5vDQm03EXy04r&t=474 I put the hard yards in ...
Baofeng UV 25 Review | A Big Tactical Walkie Talkie That's Hiding A Secret! - Part I
Переглядів 6 тис.5 місяців тому
🛒Buy one here, I get a few quid - or don't... s.click.aliexpress.com/e/_DdD3OVN 💲 Patreon - patreon.com/RobustReviews Want to get in touch or ask something? hello@robust.reviews This is part one, I know I've got previous here, but there *will* be a Part II Please note: My reviews are not called Robust Reviews for nothing; they're potentially liable to offend but I deal in the real world, not al...
I Tested Amazon UK's Cheapest Walkie Talkies
Переглядів 3037 місяців тому
Get yours here - amzn.to/3TAoF00 - Currently has a 15% discount attached. Chapters: 0:00 Intro 0:53 NXGKET Unboxing 1:20 Charging & Battery Life 01:50 Who are these for? 02:57 Range Testing 05:05 Destruction Testing the Handsets 07:00 Final thoughts! These bright orange NXGKET might be the cheapest walkie-talkies for sale today (01 March 2024) on Amazon, but are they any good? We put them throu...
Amazon Budget Precision Screwdriver Set Review & tips || Tap & Unwrap!
Переглядів 182Рік тому
Amazon Budget Precision Screwdriver Set Review & tips || Tap & Unwrap!
Still the best budget DMR Ham Radio? Aliunce Retevis HD1 Is this still the most rugged radio?
Переглядів 3,8 тис.Рік тому
Still the best budget DMR Ham Radio? Aliunce Retevis HD1 Is this still the most rugged radio?
Gerber Paraframe Mini Knife Review || I Know NOTHING About Knives, but it's only two minutes long.
Переглядів 74Рік тому
Gerber Paraframe Mini Knife Review || I Know NOTHING About Knives, but it's only two minutes long.

КОМЕНТАРІ

  • @eiffe
    @eiffe 2 години тому

    Watched this for the comedy bits and wasn't disappointed

  • @britsluver
    @britsluver 7 годин тому

    Queen Madonna in 1985

  • @chaoticsystem2211
    @chaoticsystem2211 9 годин тому

    krank the knob, man!

  • @RetroMusicPlayback
    @RetroMusicPlayback 9 годин тому

    I worked on that system. Mastering, programming, duplicating, the lot. We developed our own Mastering Suite, with Philips help. Ran on MS-DOS. Still got the Hard Drive & a copy of every disc I ever worked on. Customers still had it up till about 2006

    • @robustreviews
      @robustreviews 4 години тому

      Wow, that’s absolutely wild! I’d love to find out more, could you drop me an email at hello@robust.reviews if you get a moment? I’d love to ask some more questions for a follow up video! ~Andy

  • @jamesburke2759
    @jamesburke2759 11 годин тому

    The side panels were usually just veneer timber, easy DIY project.

  • @jamesburke2759
    @jamesburke2759 11 годин тому

    Glad i found your channel, funny stuff.

  • @SuperWarren83
    @SuperWarren83 12 годин тому

    You are an interest, but please leave the ''Comedy'' to the likes of Stephen Fry.

    • @robustreviews
      @robustreviews 12 годин тому

      You won’t like my other videos then!, Sorry buddy. I’m sure there are other channels out there more to your taste? ~Andy

  • @JunkerDC
    @JunkerDC 15 годин тому

    It sounds about the same as background music at most of the places i have been too

  • @WhatALoadOfTosca
    @WhatALoadOfTosca 20 годин тому

    Imagine working in Woolies listening to 90s house!!! Lol. BTW... ANOTHER GREAT AND ENTERTAINING VIDEO. Thank you.

  • @djsarahjones
    @djsarahjones 21 годину тому

    Good teaser video. If that was the Thomson Sky+HD box at the end. I still think with the height capacity modified power supply. They were more relatable than the Amstrad boxes that replaced them.

    • @robustreviews
      @robustreviews 21 годину тому

      I *think* that was an Amstrad one (it was recycled afterwards, even I’ve got about 5 sky boxes laying around, they seem to multiply and I’ve never even subscribed to Sky) - but a good spot! I’ll say it was “illustrative” 😂 thank you for the comment @djsarahjones ~Andy

  • @usvalve
    @usvalve 22 години тому

    Very irritating presentation, takes 5m to get going.

  • @computer_toucher
    @computer_toucher День тому

    You get a like and a sub for the intro alone :) The rest can't be bad after that! _edit_: Great script, brilliant! And your taste is exquisit. More, you cheeky brit, more! The ADPCM version sounded much better than I expected. I thought a 22Khz mono 8 bit signal, a la .mod samples (but long ;), and some "undocumented" magic for it in the player.

    • @robustreviews
      @robustreviews 21 годину тому

      Haha I’ll go more in to the nuts and bolts in the next video. There’s some clever trickery in the encoding that’s for sure. Thanks for the positive comment @computer_toucher

  • @1o1s1s1i1e
    @1o1s1s1i1e День тому

    Great video! Despite my university education I know how to open a box so you can lose that, but the annoying background music is too loud, I'm more interested in your prattle than music.

    • @robustreviews
      @robustreviews 22 години тому

      Haha yeah that’s a totally fair criticism - I’m leaning this stuff and it was mixed way too loud, I agree. I’ve stopped using bed music now 😂 thank you for the unboxing feedback and making a reply mate! ~Andy

    • @1o1s1s1i1e
      @1o1s1s1i1e 22 години тому

      I enjoy your videos, both informative and full of good humor. I'm in Michigan and mainly listen to my Uniden digital scanner, and have my FCC GMRS license.

  • @tahrey
    @tahrey День тому

    Glad I watched to the end before picking up the keyboard... was going to ask about the field/frame and regular/hi-band switches on the front. Does it really just jitter the head(s?) back and forth between tracks? Or maybe swapping sides (though you'd be restricted to recording full-frame images with even-track alignment in that case, though it'd mean it would only need 25 total tracks not 50)... I'd have thought it more efficient to have a pair of heads next to each other so it could read two of them at once and seamlessly flick back and forth electronically. The extra noise in frame mode is quite unexpected... The Hi-band simply being SVHS style is a disappointment too, I thought maybe there would be a lower rez / longplay type mode when you turned that off, so it would be able to fit a full-frame image on a single track (spinning at half speed) at the expense of less horizontal sharpness. Which would be an OK compromise on some screens given how big the dot pitch could sometimes be, or indeed probably make no difference to the horizontal rez at all if you were working in pure monochrome with a B/W screen. Maybe even do 100 field-based images (with the reduced horizontal clarity making it a bit like a VCD, or a longplay NTSC tape) by putting two to a track with a small framebuffer (75 kilopixel would have been a lot more achievable than 300kp at the time... only need like 256KB, less if you accept worse colour depth). Though, maybe the noise is just the deck is a bit worn out and needs some cleaning and servicing?

    • @robustreviews
      @robustreviews День тому

      Hi mate, all good points. Mobile at the moment before I get back on the M1 - I really need to get this back and have another go with it! You have asked very sensible questions and good points! Definitely needs a part 2! ~Andy

  • @channelzero2252
    @channelzero2252 День тому

    My comment will probably get buried, but I don't care so here it is anyway! 😄 I have a 1997 Technics RS-AZ7 cassette deck in my component system purchased as an ex-display refurb from Panasonic UK in 2017. It looks so much like yours, I thought it was the same model at first. I also have a 2002 Philips CDR-778 dual-well audio-CD recorder in my system, but because it needs those "CD-R Digital Audio" or "For Music" discs to record on, it's far more useful as a double CD player. Anyway, I was genuinely surprised to see that your player was made in Japan. I've only known Philips to make things in Holland, Germany or China. My CD recorder was made in Holland. The cassette deck was made in Japan, as is our 1997 MiniDisc deck from Pioneer. Our 2020 Yamaha amplifier and 2007 Denon CD player are made somewhere in Asia - I think are made in Malaysia. I've never seen any of your videos before but, after this one, I'm subscribed! Not strictly because of the topic, but just the way you've presented this video suits my tastes perfectly. So even if part two takes months to arrive, I don't care, I think I will be suitably entertained and informed. Finally, I've always had an interest in VCD ever since I first heard of it in 1995. But nobody on UA-cam has attempted to tell the story behind the format. Everyone just says "It's sub-VHS quality, it was big in Asia for a while" and then they move on.

  • @tahrey
    @tahrey День тому

    MOMT sounds familiar but I thought it was a lot older than 2 years...

  • @kevinputry5655
    @kevinputry5655 День тому

    An 8 hour CD sure sounds great on paper but in reality there's a significant difference in sound quality between 4 bits and 16 bits.

    • @tahrey
      @tahrey День тому

      Well, that's why they never made any actual 4-channel discs. But this isn't really intended for sitting-at-home Hifi listening. You could just get a multidisc changer for that. It's meant as a more robust alternative to the old Muzak tapes or wired music service over phone / cable TV lines...

    • @robustreviews
      @robustreviews День тому

      Yep, it’s very much more in that mould. In time I’m sure a better compression system could have been developed but this is well before CD burners, or even music files as we know them today. Still 8 hours of acceptable audio I think was smart for something designed in the mid 1980s!

    • @AaronOfMpls
      @AaronOfMpls 23 години тому

      @@tahrey Yup, or the old Seeburg vinyl records that Techmoan covered ages ago. (Though those had already died out sometime in the '80s.)

    • @GBOAC
      @GBOAC 22 години тому

      You can’t compare the apple of individual 16 bit samples with the orange of a 4 bit adaptive sample. The 16 bit are there to encode any level, hence why it needs a large value. With adaptive you just need the difference with the previous sample, and as every normal sound is a kind of wave, you don’t need a huge amount of bits to find a fitting value that maintains quality well enough.

    • @belstar1128
      @belstar1128 13 годин тому

      if they waited until the later 90s or early 2000s they could have had more advanced compression techniques but this is quite old

  • @ronny332
    @ronny332 День тому

    Great topic, nice video! 🙂bit hard to understand for my US-English trained German ears. But I Got It!!! 🙂See you next time!

    • @robustreviews
      @robustreviews День тому

      I am going to try and speak more clearly! Initially most of my videos were for a UK audience, I do transcribe the subtitles properly too if you do need a hand to work out what I’m going on about. Can’t wait to see you too @ronny332, thanks for the comment!

    • @ronny332
      @ronny332 День тому

      @@robustreviews nah, no need to change anything 🙂it's practice for my brain and ears. "be as you are, don't try to be somebody else"

  • @tahrey
    @tahrey День тому

    Instant sub. Good info, great humour, and top notch production quality :) Also they were still using these things into the 2000s (a couple years before you were at Woolies from the sound of it), bar I worked at had one, and ONLY ONE DISC. ...In fact I'm not convinced it wasn't a knockoff that only ran for four hours (or maybe only 2x the length of a normal CD by using each channel separately?) because it definitely played each song more than once a shift... I still can't listen to "Warning" or the other songs that were on it without feeling irrationally annoyed. I guess Sony and Philips must have still been bessie mates when the Playstation came along then seeing as they were more than happy to put a XA format decoder into the console. BTW I think the reason for the funky sample rate is that it gets 2x the play time of regular CD when encoded as 12-bit PCM stereo or something? So it's simpler to decode but can still save space on the disc whilst sounding basically identical though typical crappy TV speakers (likewise, ADPCM does have some noticeable noise in quieter sections, but it's no worse than cassette and won't ever be noticeable over a shop or bar PA or on an early 90s telly where it'll be drowned out by line noise and 15.6kHz transformer whistle anyway). ...or was it that it's what you get when using CDROM style sectors rather than CDDA ones, so audio can be played back from a PSX format data disc running at 1x speed? Erm. I get 38.4kHz when doing that conversion, but maybe I got it wrong (2048 x 44.1/37.8 doesn't work right either, so maybe it doesn't quite use regular CD sector size?)... Used to know how it works. Tried to google and the answers look like they'd need way too much digging for an offhand youtube comment. In any case I think it also got used alongside some primitive not-quite-MPEG VCD-ish video compression for the Playstation's ratty FMV, half the bits going to video and half to audio at 2x speed, or 3:1 if they used mono sound instead (50/50 at 1x... etc), making the maths and demuxing simpler (maybe using actual ADPCM would have put too much overall load on the machine to maintain even the usual 12.5/15fps, without giving a meaningful uplift to bitrate over what was already achieved... there were still the options of halving the sample rate and/or using 8-bit after all and that seems to be the route that pre-MPEG PC game FMV went down)

    • @robustreviews
      @robustreviews День тому

      Sorry mate I’m mobile but great points, can’t give a detailed answer now but the sectors are very much “non-standard”. Will reply properly later once I’m at my desk! ~Andy

  • @nowster
    @nowster День тому

    A background music format that Techmoan has missed? Great find!

    • @tahrey
      @tahrey День тому

      He's probably more interested in the analogue types, but I'm interested to see this one if only because of having direct experience with its horrors in my working life, and messing around with XA format audio extraction from PSX games (and, oddly, some PC ones) back in the day...

    • @channelzero2252
      @channelzero2252 День тому

      Exactly what I was thinking 😁

    • @robustreviews
      @robustreviews День тому

      Hi did briefly show a picture of one of these, in his latest Philips tape BMS video at the start, I did mention it in a bit that got cut, mostly because… I’ll stick in the next one, you’ll see why! ~Andy

    • @JacGoudsmit
      @JacGoudsmit 18 годин тому

      Mat at Techmoan is aware of this format but I think he just hasn't found a player and/or discs.

    • @SuperWarren83
      @SuperWarren83 13 годин тому

      Not any longer, i emailed him this vid

  • @hahanah1463
    @hahanah1463 День тому

    You must be chillijoncarnes brother surely

    • @robustreviews
      @robustreviews День тому

      Haha no way, he’s a Hammer and I’m squarely a Gooner. No relation I’m afraid although I have a feeling he may have lived not ever so far from me at one point. I’ve been a fan of his for years, I’ve not watched any TV since 2011! Good comment!

  • @MrSlipstreem
    @MrSlipstreem День тому

    I used to fit up to 15 hours of stereo music on CD-R discs for the car back in the early 2000s by encoding them with the LAME MP3 encoder in VBR at -V6. They played back fine on my Alpine head unit and gave a 17kHz bandwidth. Nowhere near CD quality obviously, but still far better than the previous cassette player I had in the car. Each disc was the equivalent of up to ten C90 cassettes, so they were a lot easier to store in the car too.

    • @tahrey
      @tahrey День тому

      Oof... I envy the tolerance. I couldn't ever stand worse than V3, unless deliberately lowpassing them. The treble just got too artefacty. Having to upgrade to V2 a lot of the time too (preferring about a 19kHz bandwidth, just a little more than the MDLP and good quality tapes I used beforehand). Sort of bemoaned not being able to have finer control over the VBR levels, a 2.5 would have been perfect (manage that now with the Nero AAC encoder, it supposedly aiming for about 145kbit / v0.45ish seems equivalent overall). CDRs were cheap and stacked easily (and I made enough CDDA ones before I had an MP3 compatible headunit) so getting "only" like 8-10 hours per disc was fine... Real pain that USB based ones now seem to be less reliable. Got everything that I care about on a single stick but the car won't recognise the damn thing most of the time so I just end up bluetoothing the phone (also a bit unreliable but not as much) or plugging a Sansa in using the 3.5mm...

  • @NiddNetworks
    @NiddNetworks День тому

    The stuff I love to watch on here would be classed a waste of time by most people.... for me, it's essential daily viewing!! Very happy and proud to have subscribed to you, and look forward to your next "waste of time" - which will be very much appreciated by all of us like minded subscribers! :)

  • @static-san
    @static-san День тому

    Fun little thing! I suspected at the top it was going to be compressed audio, but I was expecting Musicam aka MP2, not ADPCM! Looking forward to upcoming videos about Video 2000 et al. I've seen that one described as third place in a two-horse war. Interesting format, though!

    • @robustreviews
      @robustreviews День тому

      Yep, it’s quite a neat little thing though - I don’t think it’s quite as offensive to listened to as I imagined but it has its limitations! Thanks for getting involved and can’t wait to show you some video gear! ~Andy

    • @tahrey
      @tahrey День тому

      Yeah, I was wondering whether it was going to be ADPCM or maybe 8-bit with halved sample rate. XA was in the back of my mind but the reveal was still an "oh, really?". 1988/89 seems rather early for CD-i stuff. Maybe they were still developing it at the time and Greenbook was the first thing to be cemented and put into use? (Hence someone else's mention that the actual interactive video elements are a supplement to the main document?)

    • @JacGoudsmit
      @JacGoudsmit 17 годин тому

      CD-i was developed at the same time as MPEG; that's why the Full Motion Video feature was supplied by a cartridge: It wasn't ready yet when Sony and Philips finalized the Green Book standard. The FMV cartridge could decode MPEG video and MP1 (not MP2 if I recall correctly). Philips developed the Digital Compact Cassette around the same time. DCC was released in 1992 using PASC compression, which was essentially the same as MPEG 1 layer 1 (also known as MP1). ADPCM can be regarded as the predecessor of MP1 and MP2, and MP1 and PASC are a simplified version of MP2.

  • @hahanah1463
    @hahanah1463 День тому

    Great to see a UA-camr wearing a poppy 👏 good video too. Hermes , uugh the worst delivery company. And the fu and furb song nod made my day!

    • @robustreviews
      @robustreviews День тому

      Worn as it should be sir, and thank you for the positive comments mate ~Andy

  • @redlopa1
    @redlopa1 День тому

    12:27 “in all good consciousnesses” made me laugh out loud, until I wondered whether it might not have been intentional?

    • @robustreviews
      @robustreviews День тому

      Haha, I am a gosh-darn helmet. No it wasn’t intentional, but if it made you chuckle mate more’s the good. Annoyingly I even transcribed the subtitles and didn’t notice that! Thank you for the comment ~Andy

  • @CuttinChopps
    @CuttinChopps День тому

    Moist

  • @CowboyButler
    @CowboyButler День тому

    Simply put - well done. Fast, Funny and to the point. Keep up the great pacing. Looking for that CDI? Hit the RetroCollective / RMC-The Cave museum at Belvedere Mill in Chalford. (Although i have a feeling you've already visited. Also good place for getting repair hints on your existing BGM unit.) -73

    • @robustreviews
      @robustreviews День тому

      I need to get over there mate, not been but sounds right up my street! Thanks for the kind words mate, -73

  • @JacGoudsmit
    @JacGoudsmit День тому

    In 1994/95 after I graduated from college, I worked for a little company called Codim in Eindhoven, The Netherlands, and they produced CD-i software. We worked with and for Philips a lot and one of the things we did was create the CD's for Philips Background Music (BGM) Services. And as it happens, I was closely involved with BGM in the time that I worked there. It's still one of my most favorite subjects related to CD-i. The way I understand it, someone at Philips BGM would record a bunch of music onto a 4 track reel-to-reel recorder from whatever source they had, in mono. Most (if not all) of the music was owned by Philips' record companies such as Polygram: That way they wouldn't have to pay someone else for the copyright licenses. They would record the tapes in mono, one track at a time. Then they would copy the reel-to-reel tapes to a DAT tape, in stereo: the left and right track would each have separate music. At Codim, we would receive a box (or was it two boxes?) of 10 DAT tapes every month, with usually the most boring music you could think of. There were exceptions: every 3 months or so there would be a production with light pop music but unfortunately those were always 4-hour discs instead of the usual 8 hours. We had a Compaq Deskpro PC with (if I remember correctly) a 486 processor at 33 or 40 MHz (one of the fastest PCs of the late 1980s), that was dedicated to producing BGM CD's. It had an ISA plugin card by Sony that made it possible to record music to a very big (1GB? 2GB?) SCSI hard disk that was in the machine, formatted in ADPCM. My predecessor had written some software under MS-DOS to go through the steps of transferring two DAT tapes (in real time, so that took 4 hours for 2 tapes of 120 minutes each), split up the files between the left and right channels, merge 8 mono files together again into one giant (600MB+) file, and play the files to verify (and if necessary, make corrections to) the timing information that we got on a floppy disk. Most of this could happen unattended but verifying the timing information was tedious. We then used our usual CD-i formatting software by MicroWare to combine the music files, the text file with timing information and the CD-i application (also written by my predecessor) into a disc image. It took about a day to produce a single BGM disc, a week for the entire production run for the month. We would put the image file of each disc on an Exabyte backup tape which we would send off to Germany to press a couple hundred CD's from each of them, according to what Philips BGM had ordered. They kept the production cost low by not printing anything on the CD's and packaging the CD's in envelopes instead of jewel cases. The boxes of CDs and DAT tapes (and the floppy disk with information) went back to Philips BGM who would take care of distributing the discs to their customers and reusing the DAT tapes for the productions of the next month. Sometimes we at Codim would also burn our own disc if there was something that we might want to hear on days when there was nothing on the radio. We had plenty of CD-i players of course but we also had one of those BMS3000 players like you have. They were made by the parent company of Plextor, if I remember correctly. By the way that BGM player is not a stripped CD-i player like you kind of imply in the video; it's just a CD reader that understands "mode 2 form 2" sectors and decodes ADPCM as well as PCM (audio CD), and has a microcontroller that knows the BGM CD format. That, by the way is in a supplement of the Green Book, not in the Green Book itself. I've been searching for that supplement online in places like the Internet Archives but I haven't found it. It describes where a BGM player can find the files (audio as well as the text file with timing information). The specification says there must be a CD-i application on the disc but the application is ignored by the BGM player. Some discs have a very simply early CD-i application with just a Play and Stop button on the screen; the application that we included in the time that I worked on BGM showed a screen with all the songs and you could choose which one you wanted to play. BGM CD's are very rare, not only because they weren't for sale, only for rent, but also because Philips made them without labels so whenever someone runs into a big stack of them, they would probably not be recognized by many people, and if you put them in an audio CD player or a CD-ROM drive, they won't play because they use the CD-i format, not CD-ROM or Red Book Audio. Nevertheless, I think the HomeComputer Museum in Helmond, the Netherlands, may have some, because they have a big archive of artifacts that came from the Codim company. If you ever get your hands one more of them, I think you can use ISOBuster to rip them. And it shouldn't be too hard to reverse-engineer the format and make your own; you just have to put the various files in the exact right location in the disc image because otherwise the BGM player won't find them. I intended to do that while I was working there but I never got around to it...

    • @robustreviews
      @robustreviews День тому

      This is an amazing comment sir, I’m not able to read it fully and digest at the moment but thank you for taking the time to share that. Looking forward to reading that properly when I have a moment. ~Andy

    • @tahrey
      @tahrey День тому

      Fantastic insider info ... using DAT is quite interesting, seeing as that ran at the wrong sample rate (48 instead of 44.1kHz), supposedly to make copying to/from CD harder and lower quality?! But then if you're downsampling to 37.8 anyway it probably doesn't matter. Or would they have recorded onto the DATs at slightly higher than real speed so then all your software would have to do is slurp the raw bits (at 48) and ADPCMify them, with the speed adjustment happening transparently when played back in the machine? 🤔 The 4-hour discs sound interesting, I wonder what the deal with them was ... as you mention "light pop music" I suspect that might be what the bar I worked at in the very early 2000s used. That music couldn't have been on an 8-hour loop unless the manager was an arse and deliberately programmed the machine to loop early. It being in stereo seems unlikely given the use case (I've seen lecture / seminar rooms with 100v's wired in stereo for use with the projector screen, but you wouldn't bother for a wider area PA), so maybe a less severe compression type (A-law/mu-law perhaps, or even straight 8-bit PCM)? Or did they simply only fill the disc halfway?

    • @JacGoudsmit
      @JacGoudsmit 18 годин тому

      @@tahrey The DAT tapes were recorded at 44.1 kHz, not 48 kHz. Not that it matters because they were recorded from an analog source and transferred to the PC via analog cables. Nowadays we would do this all differently but in the early 1990s, sound cards for PCs were uncommon, and cards that could record digitally were almost non-existent, so "slurping up the bits" was simply not an option. I'm guessing the only reason to use DAT was so that we at Codim wouldn't need a reel-to-reel tape recorder and we wouldn't need to deal with the reel-to-reel tapes. And we already probably saved oceans of time by using the very expensive ADPCM encoder card that would put the music on the hard disk in the correct format without requiring another step to encode the audio from PCM to ADPCM. As for the shorter BGM discs: The CD-i format depended heavily on "Real-Time Files" because they didn't have a lot of memory for buffering, and the optical drive ran at the exact same speed as an audio CD drive. A real-time-file was a file that contained multiple interleaved streams of data, and the hardware was capable of de-interleaving and processing the data in real-time. That was done for audio as well as video. For BGM CD's, the ADPCM audio was stored in Mode 2 Form 2 sectors that were interleaved 8 to 1. So the disc would spin at normal speed and the hardware would process one sector out of every 8 sectors, and skip the other 7 sectors. ADPCM-B uses (roughly) 1/8th of the total bandwidth of a 1x speed optical drive, so by running the ADPCM decoder in lock-step with the optical drive and processing only 1 out of every 8 sectors, the audio would get played in real-time. By playing the same real-time-file 8 times and selecting a different sector from the interleaved stream, you would get 8 hours of music, because the real-time file was 8 tracks of 1 hour each. The shorter discs just had a shorter real-time file, usually half an hour times 8 tracks. In theory it would have been possible to get almost 8 x 74 minutes on a disc but that would caused practical problems during production (remember DAT tapes were 120 minutes and reel-to-reel tapes also have limitations to their length; not to mention it would have taken a lot more hard disk space and processing time on that computer to process everything). Anyway, the point is: shorter BGM discs would still use ADPCM, because that was the only format that was allowed by the BGM CD format.

    • @SuperFlashDriver
      @SuperFlashDriver 7 годин тому

      @@robustreviews I was able to read that all in one go, maybe loose a place or two. But the way he talked about the specs, and yet, at that time 2 Gigabytes/2.24 Gigabits was the highest it could reach...And my goodness it took them a day/week to get this processed and done, that's probably why they were so patient making these was to absolutely make sure they were done on time and done perfectly, because one tiny mess up can screw the whole disc and have to be burned from scratch or probably use a different disc altogether....Gosh, I can't imagine how these individuals working on Philips own internal proprietary software would do this back in the 1990s.

    • @robustreviews
      @robustreviews 4 години тому

      @@JacGoudsmit This is fascinating @JacGouldSmit and some technical details I couldn't find. I'd love to include them in a follow up video. Would you be happy to drop me an email to hello@robust.reviews as I'd love to clarify a few bits and ask a few more questions to check my understanding! Thanks so, so much for leaving these messages!

  • @elphive42
    @elphive42 День тому

    Would it be possible to get a .bin/.cue image of this disc? 8 hours of vintage house sounds absolutely like my jam.

    • @robustreviews
      @robustreviews День тому

      I did create one as first pass with the new disc so I’ll put it up in (the usual place) when I get a moment and report back @elphive42 ~Andy

    • @tahrey
      @tahrey День тому

      Likewise. Though I think the copyright would be an issue. Still, a _tracklist_ would be useful. I recognise / already have some of those tunes but not all the ones demoed. Also I wonder even what the use case for that particular disc was, other than maybe as a demo? Trendy clothing shop? Yuppie bar on the nights when there was no DJ in? BTW I fancy the machine doesn't have a shuffle mode... that would be too kind to the minimum wage employees after all.

  • @gymnasiast90
    @gymnasiast90 День тому

    Interesting subject, but you should really cut down on the "whoosh cuts" and number of asides - especially as you say you're not going to waffle at the beginning.

    • @robustreviews
      @robustreviews День тому

      Fair. I’m finding my style, remember I’m still a novice at this stuff but noted. Sorry you didn’t enjoy it. ~Andy

  • @Michel-r6m
    @Michel-r6m День тому

    In the day I had a CD207 top loader, total science fiction for me at the time 😅

  • @transagenda
    @transagenda День тому

    I'd follow for the turns of phrases alone!

    • @robustreviews
      @robustreviews День тому

      You should hear some of the nonsense I edit out! Thanks for the comment @transagenda ~Andy

    • @tahrey
      @tahrey День тому

      I'm keeping "two cheeks of the same arse" for certain

  • @waynesharp1690
    @waynesharp1690 День тому

    Brilliant Andy 👍

    • @robustreviews
      @robustreviews День тому

      Thanks @waynesharp1690 - great message to wake up to! ~Andy

  • @JacobButtnugget
    @JacobButtnugget День тому

    Subbed at 1.07k subs.

    • @robustreviews
      @robustreviews День тому

      Welcome to the cool kid’s party! Cheers for the sub ~Andy

  • @xmctmariaville511
    @xmctmariaville511 День тому

    6:40 The comparison made my day. Subscribed!

    • @robustreviews
      @robustreviews День тому

      Glad it made your day! Thought it worth licensing and using something decent! Thanks for the sub @xmctmariabille511 ~Andy

  • @bjarnenilsson80
    @bjarnenilsson80 День тому

    Hmm i wonder why they dud 't just stick aac files on a cd and have dine with it, as it was going to be used in a dedicated player anyway an extra chip on the mp fir the decider wouldn'tbe that much hassele amd then the would probably get 8-10 h on on disc without the . Or dies thus devuce pre date aac and the like

    • @nooneinpart
      @nooneinpart День тому

      I'm guessing it was a long while ago if they had to use ADPCM rather than one of those MPEG codecs, let alone AAC.

    • @gamagama69
      @gamagama69 День тому

      flac wasnt made til like 2001. this shit predates mp3

    • @gymnasiast90
      @gymnasiast90 День тому

      AAC was only "released" in 1997.

    • @TrimeshSZ
      @TrimeshSZ День тому

      It does predate AAC - my guess is that they just used the XA-ADPCM decoder chip they had already designed for CD-i and ran with that because they already had the silicon and this was a low-volume product.

    • @michaelturner4457
      @michaelturner4457 День тому

      This is a CDi, which dates from 1990, a good few years before AAC was invented.

  • @Mrshoujo
    @Mrshoujo День тому

    I will save "2 cheeks of the same ass" as a great phrase.

  • @betamax80
    @betamax80 День тому

    Anyone with a TV-am mug is okay by me :) I'm glad to have found the channel.

    • @robustreviews
      @robustreviews День тому

      Ha! I’m surprised nobody has mentioned that before! Thanks @betamax80 ~Andy

  • @JSRG69420
    @JSRG69420 День тому

    Glad your video came across my feed. Hilarious! Hope your channel grows exponentially.

    • @robustreviews
      @robustreviews День тому

      That’s really kind of you to say! Glad you enjoyed it! Lots more nonsense coming! ~Andy

  • @MDPToaster
    @MDPToaster День тому

    Neat find, now you can turn your house into a department store

    • @robustreviews
      @robustreviews День тому

      That’s an idea to be fair!! Cheers @MDPToaster ~Andy

    • @tahrey
      @tahrey День тому

      Question is, how easy or not is it to make new compatible discs? And is it worth the effort vs just plugging an MP3 into the mic jack?

  • @dj_dazzy
    @dj_dazzy День тому

    V2000 my favourite video recorder.

    • @robustreviews
      @robustreviews День тому

      I have a lot of them, and they are brilliant. I’m making a documentary about the format war which will be out one day. Cheers for the comment mate 🙏 ~Andy

  • @steamfire
    @steamfire День тому

    😊 thanks for sharing the nerdy fun electronics!

    • @robustreviews
      @robustreviews День тому

      I have so many cool things to share mate. Thanks for the positive comment -Andy

  • @N2EWSRadio
    @N2EWSRadio День тому

    Great video, and, WOW, thanks for the plug!!!! I'm usually part of the 50% who celebrates when they turn it off. But not always. I have some hearing loss and terrible tinnitus because someone blew out my eardrum in my left ear, but I can still clearly hear the difference between 16 and 4 bits. But I challenge anyone to notice the difference as background music in a store.

    • @robustreviews
      @robustreviews День тому

      Mate you are most welcome, you showed me tremendous support when I started, always willing to help sir 🙏 ~Andy

    • @tahrey
      @tahrey День тому

      I can definitely hear it in headphones (my first foray into digital music was getting tracks from my early CD singles to fit onto 1.44MB floppies, using mono ADPCM and some rather low sample rates... I can still tell you the exact usable size of a PC floppy, 1423.5KB, as a result), but playing this through my smartTV? If I shut my eyes I wouldn't be able to tell you the points at which they switched back and forth. It's sort of cassette hiss level, which befits it having been developed for voice recording and transmission as a way to double up the capacity of 8-bit PCM phone lines. You likely wouldn't hear tape noise in those environments either, but clearly pick it up with cans on. In fact replaying that bit on laptop, the only real giveaway is the stereo/mono switch. There's maybe a little extra crispiness in the ADPCM version, IDK, may be imagining it. One advantage of keeping a near-CD sample rate is that ADPCM noise is very much biased towards the top of the frequency range, so it's, eh, just about tolerable on a phone, and really rather noticable if you're bitcrushing things at like 14-18kHz sample rate as I did for the floppies, but pushed nearly out of most people's hearing range at 38kHz and certainly into a less sensitive area. The often limited frequency range of PA speakers and the absorbent nature of everything that'll be in the retail / hospitality space should take care of the rest, and if you're really bothered you can turn down the Treble control... The analogue or broadcast alternatives wouldn't often have had more than 15kHz of bandwidth anyway.

  • @curtisnewton895
    @curtisnewton895 3 дні тому

    meh

  • @markozsky
    @markozsky 8 днів тому

    your review really touch my guts.totally interesting mate.you own me now

  • @acid_flash
    @acid_flash 8 днів тому

    Выходит, на диск влезает 1 секунда аналогового чересстрочного видео. Или иначе говоря, на каждой стороне по полсекунды чересстрочного видео (по 25 чересстрочных кадров на каждую сторону). Обе стороны диска дают полсекунды видео с прогрессивной развёрткой, то есть 25 полноценных кадров. * В Wiki так же указывается возможность цифровой записи на 800 КБайт. В аналоговой записи нет никаких пикселей, есть только строка с "бесконечной кривой" (без переходов в цвете, потому что нет цифрового ограничения по разрядности). Но для съёмки (сканирования) аналогового изображения используется матрица, которая использует набор светочувствительных точек (как пиксели). Аналоговая запись является ресурсоёмкой из-за отсутствия квантования (отсутствие деления на порции с чёткими ограниченными параметрами). Иначе говоря для аналоговой записи требуется высокое качество материала хранилища (носитель данных) / высокая плотность "зёрен" и высокая скорость.

    • @tahrey
      @tahrey День тому

      Well, you are still limited by the bandwidth of the signal and the recording media. And VGA and DVD resolutions came about because they roughly match the usual kind of horizontal resolution that you could expect from the luma of an analogue video signal (the chroma being less clear, hence the way MPEG compresses, and JPEG does too, probably initially meant as a way of digitally compressing video stills...), just without having quite the same absolute infinite positioning of a particular point on the screen... the point would still smear out to be one or two pixels wide, so it's no huge loss. The vertical resolution being somewhat fixed because of the raster lines... Same as with analogue audio recording, the amplitude of the higher frequencies tails off after a certain point, eventually down into the noise floor. There's still that nyquist limit, it's just not as hard or well defined an edge. Shannon still takes his tax.