To digital guru:
You are correct. I was using copy and convert on Roxio Creator 2012. As suggested I uploaded to upfordown. The location for the avi and mp4 are as follows:
They are short trailers. Note that the mp4 (converted mkv since upfordown does not allow mkv) was run through the copy and convert to avi.
Please advise how to avoid loss of sound when converting. Thanks. The mp4 plays fine with video and sound and the avi has good video and no sound.
I used GOM player, Roxio and Nero, with the same results with no sound after converting using Roxio..