In my case the 25 second audio was taken from the processed video which was also 25 seconds. The unprocessed video when I go back to editing appears to be 30 seconds. When I import the audio its 5 seconds short. Its like the unprocessed video and audio were 30 seconds... when processed and saved as an avi, the video and audio become 25 seconds. I don't want to reuse the processed video as it would lose quality.