We have a Flip. We love using it. We have a digital camera as do most people. However, we never use the movie feature on the Digital camera. Who does? So that’s where the Flip comes in. Point and click. Recently the video from the flip wouldn’t transfer into Quicktime or any media player format. We had the same issue with my Dad and brother in law’s flips. They are Mac guys too. I found and downloaded Perian and it worked like a charm. Also, this is free…. Not sure why it stopped in the first place, but it works now. Quicktime most likely did an update that stopped the sound from Flips.