I'm editing a film clip (the format is .MP4) and the sound works fine but the video doesn't. The sequence is blank. But in the Source Monitor, the video and audio works. How do I fix this problem? I tried rebooting my Mac but that didn't work. I've worked with .MP4 before and never encountered this problem.
When you say "The Sequence is blank," do you not see this MP4 Clip on the Sequence's Timeline? You have dragged it there, correct?
Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
What is a CODEC... a Primer http://forums.adobe.com/thread/546811
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing
For Mac http://mediainfo.massanti.com/
See 2nd post for picture of NEW ITEM process http://forums.adobe.com/thread/872666