I have successfully converted many 23.97fps avi to 25fps for burning, which i have to do with my tv else it's too jerky. Audio 23.97 to 25 isnt much of a step and the 'stretching' isnt really noticeable. However, if I convert 29.97 to 25, sheesh its like the converted audio is slowed right down to half speed. Currently I use virtualdubmod to save wav, or demux and besweet to convert that from 23.97 to 25. Then I stream out the video in virtualdubmod and change from 23.97 to 25. Then I use tmpgenc plus with pal dvd template and knit them back together. The synch is always perfect, well so far after 60 dvds they are. I'm just stuck as to what to do when its a 29.97 movie and mostly these are svcd or vcd.

Many thanks in advance.