[Jim Baker]

Hello everyone i have also been hit with this problem. I just purchased a new mac pro and space and speed is no longer the issue. I have had this problem on two separate machines as well. having talked to apple and following through with their advice witch ended in a Complete reinstall of my OS X and final cut studio7. Once again the problem returns. after reading all post in this thread i feel it may be the HDV movie files as i too have been using this codec. I’am now going to convert all my HDV files and try the apple pro rez or a DVCpro HD 1080i60 compression.
I will report back with my findings as i know their is not much support on this issues.

the file format i have been editing with is:
Apple HDV 1080i60, 1440 x 1080 (1888 x 1062), Millions
16-bit Integer (Big Endian), Stereo, 48.000 kHz
witch was recorded with a firestore FS-C

anyone with further insight into this problem please share