Ok, i just a macbook (used from a friend) and I decided to record in photo booth a 2 minute video of me and my son (i have done two before and worked fine) and I thought it went well but when I decided to play it the only thing that worked on it was the video but had no audio playback. What happen and is their a program that can maybe retreat the sound it maybe its still in the file? Any help would be great thanks.