My good camera with audio input died, so now I'm using a video camera and recording my audio with a Tascam Linear Recorder, Model DR-07MK2. I get good audio but when I drop it in Final Cut Pro to sync up the mp3 audio with the video I can keep it in sync for a minute or so but it slowly moves out of sync. I don't understand how to the playback speed can be different. They are obviously both recorded at the same time. I assume that the realtime playback is slightly different and undetectable when played by itself. If that is the case or if it isn't, how do I fix it? Is there a setting in my recorder that makes it record at the same speed as my camera?

Thank you,