Jetrell Fo said:
How can I tell if my LD captures are frame accurate? I've got my Japan LD captures of the S.E..
It could give us another source to work with.
Any ideas?
The way I've been doing it with my captures is to capture more than once, which was for averaging out noise. Normally dropped frames are reported by VirtualVCR, but there always seems to be one frame the slips under the net. Your capture card may well be capturing perfectly, of course!
The way I did it was to write down a frame number for a scene change every 5000 frames or so, and made sure each capture started from the same point by selecting a unique frame (like a frame on a THX logo with a unique piece of white dust) and setting a trim point in AviSynth. Do this for a point at the start and end and check each capture length in frames, and give a quick check for the scene change points, starting from the end. If you have 2 captures with an unreported dropped frame each, then at some point your numbers won't match in VirtualDub. Its then a case of finding the frame(s) that have gone and recapture that part of the film and splice it in with a simple AviSynth script and you should have a full capture ;)
EDIT: Just thought, you could trim from the same frames at the start and end of each capture, crop each one half way across the frame and stack them horizontally to check the scene transitions line up properly. Thats probably a faster method of doing it rather than checking each one individually.