> > A LaserDisc player-emulator could extract the VBI from a composite video signal in > > real-time. It would not be difficult, but it would require that the LaserDisc media > > be preserved as a composite video signal. > > > > The possibility for information to be stored in the VBI in any analog video media > is > > a good argument for working with video signals directly, in my opinion. > > I do agree with you on both points, and had I seen your reply before I made this post > may have replied slightly differently. If you have time, take a look at that one and > let me know your thoughts - I'm mainly interested in how it may be possible to store > a composite video frame in a digital format such that the individual composite > elements could be broken back out again.
Again big thanks, casm. I hope i can read everything in the evening after job-time. I agree with anikom15, MJPEG is not good enough, as it is not a lossless codec. We used MJPEG only for creating proxies that are smaller in size and better to work with. Nearly every lossless codec has each frame saved individually but without compression/degrade.
After reading your first post, i also understand now, that it would be silly to convert the games to codecs that would generate smaller sizes, as they cant be accurate enough, to jump to exact frame numbers, but this shouldnt be a problem nowadays with a average PC setup and a big enough HD.
Back to anikom15 suggestions, i maybe can help with point 4, which sounds the easiest to do. Ok, it may be not the "best and most accurate" method, but the result would be the same IMHO and only different seen by someone who goes into very technical details (sorry if i am totally wrong with that). MAME already has some compromise for systems like atari2600 i.e., why not for laserdiscs? Can only repeat anikom15 here: "If good enough is not good enough, and you want an absolute perfect preservation of an analog medium, then of course there is no practical way of digitizing the signal. At that point the problem will be unsolvable."
From what i try to understand, the laserdisc-players seems to be the main problem, so i need to ask, what kind of laserdisc-player is needed for those games? i assume that a consumer model (those that played just movies at that time) will not work. what kind of models would work? some exact model-numbers would help me.