I always use iMovie HD to edit my home movies, Today I noticed that my HardDisk was almost full (it has 12g free) and then when I opened my iMovie proyect and play it I begin to hear "pops" and "clips" on it's audio...?? Do I need to change the iMovie file to another HardDisk to work without problems or I need to start all over again? those "clip" and "pop" sounds were never in there and now I'm scare to do everything again.. help me here please!