okay, this is my story

I have winavi 8. i tried converting avi files to dvd for my series, and there is no sound in the last 2/3 episodes of one burned copy. i have tried this with multiple series. The 1st 2 or 3 episodes will have sound and the last 2 or 3 won't. (with 5 epsidoes on 1 disc).

Yes, there is sound on the avi files.

i use dvd shrink also.

Any solutions to this?