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casm
Cinematronics > *
Reged: 08/27/07
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Re: Question about ALG driver status
06/25/17 05:25 PM


> Arcade laserdiscs are analog video in NTSC format. That means that 480I (640x480
> interlaced) is the limit of the detail you can get out of it, and in practice it was
> probably a bit lower.

Not to mention that there's info in the VBI that also needs to be encoded, saved, and decoded at playback time.

Aaron himself wrote about this nearly a decade ago, and while it's entirely possible that things have changed in that time, I believe that the basic issue still remains:

http://aarongiles.com/?p=234

He did come up with a suite of tools to help with capturing the VBI data:

https://github.com/aaronsgiles/VBIUtils

But I have no idea how things progressed past that point; other than some minor side interest in DEXTER, I haven't really been keeping up with the technical side of what's happening with it for the past few years. It's a format that's beyond dead, unfortunately, and disc rot is making 'ideal' preservation efforts increasingly-impossible as time drags on.

For the original poster: take a look at Aaron's 'About Laserdiscs' series. There's some good info in there not only about how the format works, but also regarding the challenges faced when attempting to preserve the data that it holds.

http://aarongiles.com/?p=236
http://aarongiles.com/?p=237
http://aarongiles.com/?p=238
http://aarongiles.com/?p=239







Entire thread
Subject Posted by Posted on
* Question about ALG driver status DarkMoe 06/22/17 10:47 PM
. * Re: Question about ALG driver status TrevEB  06/26/17 08:20 AM
. * Re: Question about ALG driver status Haze  06/28/17 02:13 PM
. * Re: Question about ALG driver status uman  07/15/17 08:39 PM
. * Re: Question about ALG driver status casm  07/16/17 01:21 AM
. * Re: Question about ALG driver status uman  07/16/17 09:09 PM
. * Re: Question about ALG driver status casm  07/17/17 03:20 PM
. * Re: Question about ALG driver status John Doe  07/18/17 08:58 PM
. * Re: Question about ALG driver status casm  07/19/17 03:31 PM
. * Re: Question about ALG driver status John Doe  07/22/17 07:47 AM
. * Re: Question about ALG driver status anikom15  07/22/17 08:23 AM
. * Re: Question about ALG driver status casm  07/22/17 05:40 PM
. * Re: Question about ALG driver status anikom15  07/22/17 06:07 PM
. * Re: Question about ALG driver status John Doe  08/06/17 02:55 PM
. * Re: Question about ALG driver status uman  07/22/17 06:31 PM
. * Re: Question about ALG driver status DarkMoe  08/01/17 04:23 PM
. * Re: Question about ALG driver status StilettoAdministrator  07/19/17 06:07 PM
. * Re: Question about ALG driver status Vas Crabb  07/19/17 06:10 PM
. * Re: Question about ALG driver status Pernod  07/19/17 07:15 PM
. * Re: Question about ALG driver status StilettoAdministrator  07/19/17 07:50 PM
. * Re: Question about ALG driver status Pernod  07/19/17 09:11 PM
. * Re: Question about ALG driver status casm  07/19/17 08:45 PM
. * Re: Question about ALG driver status StilettoAdministrator  07/19/17 06:36 PM
. * Re: Question about ALG driver status casm  07/19/17 08:05 PM
. * Re: Question about ALG driver status BIOS-D  07/19/17 08:53 PM
. * Re: Question about ALG driver status casm  07/19/17 09:27 PM
. * Re: Question about ALG driver status BIOS-D  07/20/17 01:42 AM
. * Re: Question about ALG driver status casm  07/20/17 03:14 PM
. * Re: Question about ALG driver status anikom15  07/15/17 08:56 PM
. * Re: Question about ALG driver status uman  07/15/17 09:34 PM
. * Re: Question about ALG driver status anikom15  07/18/17 07:41 AM
. * Re: Question about ALG driver status John Doe  07/17/17 08:30 AM
. * Re: Question about ALG driver status uman  07/17/17 01:46 PM
. * Re: Question about ALG driver status John Doe  07/18/17 10:48 PM
. * Re: Question about ALG driver status anikom15  07/19/17 04:31 AM
. * Re: Question about ALG driver status casm  07/17/17 04:16 PM
. * Re: Question about ALG driver status uman  07/17/17 06:11 PM
. * Re: Question about ALG driver status casm  07/19/17 04:08 PM
. * Re: Question about ALG driver status Rygar9  07/18/17 01:57 AM
. * Re: Question about ALG driver status uman  07/18/17 12:23 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  07/18/17 07:36 PM
. * Re: Question about ALG driver status uman  07/18/17 11:08 PM
. * Re: Question about ALG driver status anikom15  07/19/17 05:09 AM
. * Re: Question about ALG driver status casm  07/19/17 04:22 PM
. * Re: Question about ALG driver status Vas Crabb  07/19/17 04:33 PM
. * Re: Question about ALG driver status Rygar9  07/20/17 12:21 AM
. * Re: Question about ALG driver status R. Belmont  07/20/17 08:54 PM
. * Re: Question about ALG driver status anikom15  07/20/17 04:02 AM
. * Re: Question about ALG driver status redk9258Moderator  07/20/17 01:12 AM
. * Re: Question about ALG driver status StilettoAdministrator  07/19/17 05:53 PM
. * Re: Question about ALG driver status casm  07/19/17 08:12 PM
. * Re: Question about ALG driver status uman  07/20/17 11:56 AM
. * Re: Question about ALG driver status anikom15  07/20/17 08:45 PM
. * Re: Question about ALG driver status casm  07/20/17 04:02 PM
. * Re: Question about ALG driver status uman  07/20/17 05:21 PM
. * Re: Question about ALG driver status casm  07/21/17 12:44 AM
. * Re: Question about ALG driver status anikom15  07/20/17 09:06 PM
. * Re: Question about ALG driver status uman  07/20/17 11:05 PM
. * Re: Question about ALG driver status anikom15  07/21/17 02:15 AM
. * Re: Question about ALG driver status uman  07/21/17 10:15 AM
. * Re: Question about ALG driver status anikom15  07/22/17 04:18 AM
. * Re: Question about ALG driver status uman  07/22/17 01:17 PM
. * Re: Question about ALG driver status MooglyGuy  07/22/17 10:15 AM
. * Re: Question about ALG driver status uman  07/19/17 07:30 PM
. * Re: Question about ALG driver status anikom15  07/19/17 08:24 PM
. * Re: Question about ALG driver status uman  07/19/17 10:05 PM
. * Re: Question about ALG driver status anikom15  07/20/17 04:06 AM
. * Re: Question about ALG driver status casm  07/19/17 04:44 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  07/18/17 11:17 PM
. * Re: Question about ALG driver status uman  07/19/17 12:29 AM
. * Re: Question about ALG driver status casm  07/19/17 04:36 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  07/19/17 12:38 AM
. * Re: Question about ALG driver status uman  07/19/17 01:45 AM
. * Re: Question about ALG driver status anikom15  07/18/17 08:03 AM
. * Re: Question about ALG driver status Vas Crabb  07/18/17 08:24 AM
. * Re: Question about ALG driver status anikom15  07/19/17 04:27 AM
. * Re: Question about ALG driver status uman  06/28/17 04:52 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  06/23/17 06:13 PM
. * Finding real technical information of LaserDisc is hard work. taz-nz  06/25/17 08:17 AM
. * Re: Finding real technical information of LaserDisc is hard work. Olivier Galibert  06/25/17 11:37 AM
. * Re: Finding real technical information of LaserDisc is hard work. anikom15  06/25/17 06:19 PM
. * Re: Finding real technical information of LaserDisc is hard work. Olivier Galibert  06/25/17 11:15 PM
. * Re: Finding real technical information of LaserDisc is hard work. anikom15  06/26/17 12:44 AM
. * Re: Finding real technical information of LaserDisc is hard work. Vas Crabb  06/26/17 01:41 AM
. * Re: Finding real technical information of LaserDisc is hard work. anikom15  06/26/17 03:26 AM
. * Re: Finding real technical information of LaserDisc is hard work. taz-nz  06/26/17 12:48 PM
. * Re: Finding real technical information of LaserDisc is hard work. uman  06/26/17 01:11 PM
. * So are you volunteering to do the hardware side of things? MooglyGuy  06/26/17 11:40 AM
. * Re: So are you volunteering to do the hardware side of things? anikom15  06/26/17 11:50 AM
. * Re: So are you volunteering to do the hardware side of things? taz-nz  06/26/17 01:15 PM
. * Re: Finding real technical information of LaserDisc is hard work. Vas Crabb  06/26/17 07:52 AM
. * Re: Finding real technical information of LaserDisc is hard work. anikom15  06/26/17 11:47 AM
. * Re: Finding real technical information of LaserDisc is hard work. taz-nz  06/25/17 12:41 PM
. * Re: Finding real technical information of LaserDisc is hard work. CTOJAH  06/25/17 12:45 PM
. * Re: Finding real technical information of LaserDisc is hard work. anikom15  06/25/17 06:40 PM
. * Re: Question about ALG driver status DarkMoe  06/23/17 06:16 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  06/23/17 06:19 PM
. * Re: Question about ALG driver status DarkMoe  06/23/17 06:23 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  06/23/17 06:28 PM
. * Re: Question about ALG driver status uman  06/23/17 08:12 PM
. * Re: Question about ALG driver status R. Belmont  06/23/17 10:12 PM
. * Re: Question about ALG driver status casm  06/25/17 05:25 PM
. * Re: Question about ALG driver status uman  06/25/17 10:07 PM
. * Re: Question about ALG driver status casm  06/26/17 02:12 AM
. * Re: Question about ALG driver status anikom15  06/25/17 06:48 PM
. * Re: Question about ALG driver status casm  06/26/17 02:16 AM
. * Re: Question about ALG driver status uman  06/26/17 12:43 PM
. * Re: Question about ALG driver status casm  06/27/17 12:40 AM
. * Re: Question about ALG driver status anikom15  06/26/17 03:41 AM
. * Re: Question about ALG driver status uman  06/24/17 01:50 PM
. * Re: Question about ALG driver status Sune  06/24/17 07:53 PM
. * Re: Question about ALG driver status uman  06/24/17 09:22 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  06/23/17 08:22 PM
. * Re: Question about ALG driver status DarkMoe  06/23/17 07:01 PM
. * Re: Question about ALG driver status CTOJAH  06/22/17 11:39 PM
. * Re: Question about ALG driver status uman  06/23/17 11:45 AM
. * Re: Question about ALG driver status John Doe  06/23/17 04:56 PM
. * Re: Question about ALG driver status CTOJAH  06/23/17 05:44 PM
. * Re: Question about ALG driver status John Doe  06/23/17 05:57 PM
. * Re: Question about ALG driver status R. Belmont  06/23/17 10:35 PM
. * Re: Question about ALG driver status DarkMoe  06/23/17 06:14 PM
. * Re: Question about ALG driver status SmitdoggAdministrator  06/23/17 06:16 PM
. * Re: Question about ALG driver status DarkMoe  06/22/17 11:42 PM

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