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Post subject: Pay per View (PPV) LaserDiscs Posted: 30 Jan 2024, 07:37 |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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And I do not mean RENTAL but actually PPV as described: blam1 wrote: Pay-Per-View edition. Packaged in a generic white "Pioneer" jacket, the film is spread across 3 discs. Each disc has the same program on both sides so the operator wasn't required to know which side was up. Disc 1 in player 1, Disc 2 in player 2 and so on, and the players would "switch" at the disc breaks for a seamless transition. Pan&scan / Dolby Surround. 2-discs set for a normal 2-side release, playing gapless on .... 2 players or maybe on a Pioneer LD-W1? Who has seen/touched/played such exotic releases before? Was it intended for hotels, or for public projections? Julien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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admin
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Post subject: Re: Pay-per-View LaserDiscs Posted: 30 Jan 2024, 14:58 |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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signofzeta wrote: I think I’ve seen a dual disc industrial system at some point that would explain this, of course I don’t remember its name Good point. For the US market, there's only one model in the database that fits the requirements: Pioneer CLD-V303TJulien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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admin
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Post subject: Re: Pay-per-View LaserDiscs Posted: 31 Jan 2024, 04:39 |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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substance wrote: Do you guys remember DIVX? Yes, we're old... sorry, vintage! DIVX lasted barely a year ... and made a $114 million hole in Circuit City's bank account. For our younger audience... here is a good catch up: https://allisonveneziowrites.com/2020/09/16/retro-tech-divx/Julien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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substance
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Post subject: Re: Pay-per-View LaserDiscs Posted: 31 Jan 2024, 06:18 |
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Joined: 16 May 2009, 18:05 Posts: 3588 Location: California, USA Has thanked: 28 times Been thanked: 323 times
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admin wrote: substance wrote: Do you guys remember DIVX? Yes, we're old... sorry, vintage! DIVX lasted barely a year ... and made a $114 million hole in Circuit City's bank account. For our younger audience... here is a good catch up: https://allisonveneziowrites.com/2020/09/16/retro-tech-divx/Julien Ironically, Best buy was one of the initial investors of Netflix and Vudu but sold off their shares after a short while, not believing in neither of the companies. I believe CinemaNow was another one, they gave up on.
_________________ Coming Soon Derman Labs Anything Of Substance
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takeshi666
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Post subject: Re: Pay-per-View LaserDiscs Posted: 31 Jan 2024, 17:20 |
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Joined: 01 Feb 2018, 02:41 Posts: 1996 Location: Finland Has thanked: 183 times Been thanked: 387 times
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admin wrote: That seems like it'd be pretty easy to bypass on a PC where you can eliminate UOPs entirely.
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admin
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Post subject: Re: Pay-per-View LaserDiscs Posted: 31 Jan 2024, 18:33 |
Site Admin |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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takeshi666 wrote: That seems like it'd be pretty easy to bypass on a PC where you can eliminate UOPs entirely. I can't verify this but the Blog quoted that nobody has been able to play a DIVX disc in 20 years after the dial-up system went cold. Quote: In addition to the normal Content Scramble System (CSS) encryption, DIVX discs used Triple DES encryption and an alternative channel modulation coding scheme, which prevented them from being read in standard DVD players. It is likely what the decryption key was a mix of your player ID and disc ID or something similar so that each combinaison inside the decoding chip would get the right key but each dial-up data would be different and couldn't be replayed on another player. Can't find a Service Manual for the few players released commercially. Attachment:
Panasonic.jpg [ 65.37 KiB | Viewed 395 times ]
Attachment:
proscan.jpg [ 47.67 KiB | Viewed 395 times ]
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RCA.jpg [ 62.03 KiB | Viewed 395 times ]
I don't think anyone ever bothered to reverse-engineer and crack their encryption, it's just easier to buy the regular DVD version of the 140+ titles released Even Doom9.org didn't bother! Julien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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signofzeta
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Post subject: Re: Pay-per-View LaserDiscs Posted: 31 Jan 2024, 21:39 |
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Joined: 14 Jan 2010, 09:44 Posts: 5992 Location: Ann Arbor Has thanked: 1295 times Been thanked: 1107 times
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admin wrote: takeshi666 wrote: That seems like it'd be pretty easy to bypass on a PC where you can eliminate UOPs entirely. I can't verify this but the Blog quoted that nobody has been able to play a DIVX disc in 20 years after the dial-up system went cold. Quote: In addition to the normal Content Scramble System (CSS) encryption, DIVX discs used Triple DES encryption and an alternative channel modulation coding scheme, which prevented them from being read in standard DVD players. It is likely what the decryption key was a mix of your player ID and disc ID or something similar so that each combinaison inside the decoding chip would get the right key but each dial-up data would be different and couldn't be replayed on another player. Can't find a Service Manual for the few players released commercially. I don't think anyone ever bothered to reverse-engineer and crack their encryption, it's just easier to buy the regular DVD version of the 140+ titles released Even Doom9.org didn't bother! Julien I could be wrong but I think Divx versions are worse…maybe all 4:3 perhaps? There can’t be too many exclusives, if any.
_________________ All about LD care, inner sleeves, shrink wrap, etc.
https://youtu.be/b3O-vHpHRpM
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substance
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Post subject: Re: Pay-per-View LaserDiscs Posted: 31 Jan 2024, 22:53 |
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Joined: 16 May 2009, 18:05 Posts: 3588 Location: California, USA Has thanked: 28 times Been thanked: 323 times
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signofzeta wrote: I could be wrong but I think Divx versions are worse…maybe all 4:3 perhaps? There can’t be too many exclusives, if any. Yes, they were mostly in pan&scan full screen with no extras on a single layer disc which meant high compression. I doubt they made much profit on these discs back in the day. I bought my first ever DVD burner in 2003. Blank DVDs were still very expensive.
_________________ Coming Soon Derman Labs Anything Of Substance
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admin
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Post subject: Re: Pay-per-View LaserDiscs Posted: 01 Feb 2024, 02:45 |
Site Admin |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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takeshi666 wrote: I suppose if the warning screen is something that's the only part of the disc recognized by a standard DVD player and the rest of it doesn't conform to a DVD video standard then I could definitely see it not being that easy. Yes, the Doom9.org lists the filesystem and specifics: Quote: Title: Slums of Beverly Hills Disc Label: DIVX148635663_1_1 Disc Capacity: 3.92 GB Disc Format: Universal Disc Format Root Folders: ECCTRANA, ECCTRANB, VIDEO_TS, ZOOM
The disc WILL play an error / tech screen if played in a regular DVD player, which only tells the user to call 1-800-456-DIVX (out of service). There is nothing more in the VIDEO_TS folder other than this warning.
The ECCTRANA and ECCTRANB folders have a few 360kb files that all but one or two are corrupt (presumed to be encrypted). A HEX Editor didn't tell me anything obvious, but I'm not a programmer.
The ZOOM folder contains the bulk of the data.
It contains a ton of JAR files, which are corrupt or otherwise encrypted as well as some BUP, IFO, and VOB files. Examples of these IFO/VOB:
BC_VMG00.IFO (with matching BUP) BVTS00_0.IFO (with matching BUP) BVTS00_1.VOB (through BVTS00_4) Julien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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signofzeta
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Post subject: Re: Pay-per-View LaserDiscs Posted: 01 Feb 2024, 17:06 |
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Joined: 14 Jan 2010, 09:44 Posts: 5992 Location: Ann Arbor Has thanked: 1295 times Been thanked: 1107 times
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substance wrote: signofzeta wrote: I could be wrong but I think Divx versions are worse…maybe all 4:3 perhaps? There can’t be too many exclusives, if any. Yes, they were mostly in pan&scan full screen with no extras on a single layer disc which meant high compression. I doubt they made much profit on these discs back in the day. I bought my first ever DVD burner in 2003. Blank DVDs were still very expensive. They didn’t make a single dime on any of it. Read above. It never occurred to me to think they used recordables since they were like $20 each probably at that time. I assumed they were stamped.
_________________ All about LD care, inner sleeves, shrink wrap, etc.
https://youtu.be/b3O-vHpHRpM
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admin
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Post subject: Re: Pay-per-View LaserDiscs Posted: 01 Feb 2024, 17:49 |
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Joined: 07 Aug 2002, 23:37 Posts: 4551 Location: Tokyo Has thanked: 295 times Been thanked: 1147 times
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signofzeta wrote: It never occurred to me to think they used recordables since they were like $20 each probably at that time. I assumed they were stamped. Very much pressed and stamped. I don't think the DVD-R/DVD+R/DVD-RW/DVD+RW/DVD-RAM war was over by then and most DVD players would probably NOT read recordable discs. The DIVX players could really read the bare minimum. From the Panasonic DVD-X410 User Manual: Attachment:
DIVX.jpg [ 36.35 KiB | Viewed 358 times ]
Is CVD a typo for VCD? But it in a way it was a good foreshadowing of things to come for DIVX since it stands for CardioVascular Disease! Julien
_________________ HARDWARE DATABASE HLD-X0/9 LD-S9 OPPO 105/205 SL-1200G LDD-1 MSC-4000 R2144 PONTUS II C45 MC257
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