[lookfrancisison] "I added the video and an mp3 file to the sequence and on the top of the sequence, there's a red line that is the length of the mp3 file.
When it plays, it plays a beeping noise the whole time. how do i fix this?"
Use the FCP Help Menu and look up Audio Render.
Also, don't use MP3's in FCP.
Walter Biscardi, Jr.
http://www.biscardicreative.com
HD Editorial & Animation for Broadcast and independent productions.
All Things Apple Podcast! http://cowcast.creativecow.net/all_things_apple/index.html
Read my blog! http://blogs.creativecow.net/WalterBiscardi