This is what I did step by step: Created 8 Poser Separate Animations at full res Compressed them each separately Import each into Pinnacle to derive a complete sequence out to a new AVI with sound Exract sound from AVI as wav Import wav into Sonar and overdub (no trimming no additional length) Export wav... results in same length as original video. Try to apply new audio to original video... it doesn't match Video card = 16meg Diamond Viper 550