I am making a tricky project. I own a NTSC reg1 DVD-9 (fullscreen+wide screen version) of "The Big Lebowski" and also a czech language PAL VHS of the same movie. This is maybe the only movie where I like the czech translation better than the english original .

So what I want to do, is making a DVD-R backup without the fulscreen version, trailers and documents but adding a new czech AC-3 track which I will make from the PAL VHS.

I already ripped the widescreen version from the DVD and demuxed it into m2v and english ac-3. I also recorded the stereo sound from the PAL VHS.
As the movie was shot 24fps, the PAL (25fps) audio track is cca. 112min, while NTSC DVD is 116min. So I slowed it down in Cool Edit Pro so the beginning and ending matched with the english track. So as the cca first and last 10 minutes are perfectly in synch with the english audio, I was assuming the whole new czech audio will be in synch with the english audio. But ist not! there are parts where the new audio track is shifted like 0.2s. Yeah I know, its a small difference, but it matters to me.

The only explanation to me why this happened is, that my VCR isnt playing at constant speed (its a relatively new Sony Hi-Fi VCR). Maybe there is a possibility to borrow a professional panasonic SVHS video player, but will it help? Has somebody any experiences with this?

Thx