Thanks, Bob. I recently upgraded to Quicktime 7.0.3, but I have not downloaded or added anything else, and until recently, the system has worked great. Came in this morning after letting FCP run an hour-long program to copy to my DSR-20 and found it crashed again, thiis time with a notice of crash and inquiry as to whether I wanted to notify Apple about it. Perplexing. I have plenty of memory.