I use Vegas 10.0. When I bring in a clip to the media pool & drag it down to start working it comes in without an audio track. When I go the the folder on the computer the audio is there. I've searched for a solution online & saw where you can change an extension in the root directory of the computer...under Sony. I did that and it did not help. I'd be ever so grateful for a solution for this problem!!!! Thank You in Advance!!!