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I still have some of the promotional material circa 1980 advertising and explaining Laser Disc.
According to this material, the picture is stored in an analogue format but by no method as advanded as Frequency Modulation.
This literature claims (and gives diagrams) that each frame of the movie is in fact stored as a tiny image in the pits of the disc which has a laser shone through it and it is magnified onto a camera inside the player. This seems somewhat bizzare but is how Philips claimed it was done around 1980.
The audio was of course stored digitally using the same system which was later used for Compact Disc.
With this in mind, surely the purest way to capture the image from a Laserdisc would be to capture the signal from the camera inside the player and digitise it straight from there...
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