O.K.
I think I'm almost there;
- Ran captured avi file throug Tmpgenc using lame as audio engine.
- Result .m2v and .wav
- Can pull .m2v into MyDVD to author and burn and it fits (100 minutes) with room to spare.

Now to push my luck; I understand that the .wav file can be recompressed to AC3 to get more space efficiency and audio quality on the final DVD.

Is this accurate, if so what would be needed to do this. I found a freeware progam called headAC3 but I don't want to go down this path if it does me no good in the end.

Thanks
HB