FremenDar said:
Well project is at a stand-still. Needing an audio program which will let me change the timecode and length of the AC3 track from the PAL discs which I have to match with the video of the NTSC DVD release.
Decode to wav, adjust duration (with or without pitch shift), re-encode as AC3.
You may have to cope with the fact the underlying video is of different duration. And that is going to get interesting.