> I dont know what codec is used on that discs, but > in a worst case wouldnt it be enough to capture them in a lossless codec format? > better that then waiting the expiry date for those discs.
They don't use a codec, they are essentially analogue (like vhs tapes or vinyl records).
The signal doesn't just get pulled off the disc and pumped out to your tv, it's processed by the laser disc player. So the specific model of laser disc player you use is important and how well it is maintained.
Some people have been working on cutting out as much of the player as possible and doing the post processing on a PC. Although I don't think anyone involved in MAME is doing that.
I think there is also reluctance to support some laser disc games as the current rights owners are litigious.