Cant open .mov - Please Help

Does this help?

http://support.apple.com/kb/HT2433 Common System Error Messages: What they Mean and What Might Help Resolve the Problem




+"Type -39 error (Logical End-of-file reached during read operation)+

+The Macintosh was expecting a marker to show it where the end of the file is on the disk. That marker is either missing or is in the wrong place. A crash is the most common cause, however a disk error or corrupt file can also cause this.+

+ Solutions: Recovering the file frequently fixes the problem. If it does not, make a clone of a backup, open the clone and try to import from the file that is giving the -39 error message.+
+In other applications, using an Import or Insert command from inside a new document frequently works around the problem. You also might move/copy the file to another volume."+

In doing a forum search on your issue, I found the following from QuicktimeKirk..........

+"The "end of file" message usually happens with poorly edited AVI's and MPEG-1 files.+
+MPEG Streamclip can fix the "time code" errors."+

http://discussions.apple.com/thread.jspa?messageID=8508974&#8508974


If you do a forum search, you may find other solutions if the above does not work.