TMPEG does not like to encode audio and video from the same source file. Demux the audio using your prefered "demuxer' TMpegs is quite good, but I use "Goldwave" because it is easy and very quick. Demuxing takes about 1.5 minutes and then reencoding with TMPeg talkes about 50 to 65 minutes to re mux for a 700 meg file.

Works every time for me.

If you do not want to mess with demuxing, Mainconcept Mpeg encoder works more relaibly when the the video and audio are sourced from the same file.

Demuxing also gives you a better oppotunity to coordinate audio to vidio if the original AVI is damaged.

Christian