I have a JVC VCR that I'm using to copy vhs tapes to my computer with. RCA (out) jack to s-video (in). I have done this a few times with very good results. However, with some tapes, the captured movie gives a white blockage over most of the screen on playback. I can see only about 1/4 of the movie at the top of the screen and about 1/4 at the bottom. The center is covered with this white block out. I can't figure this out since one of the movies had the block out, then I was able to record it later in another try. I have a feeling it's the program I'm using but I've tried others and I get the same thing. Has anyone experienced this and did you resolve it? Thanks.