I agree with Paul…
The only option you have is to figure out where the crash is occuring and then use Quicktime to open the files manually until you find one that is corrupt (probably it will show up as a white screen). Once you find this file, you’ll have to delete it manually and then recapture in FCP. Hopefully, you only have one file that is corrupt.
My eariler suggestion is recapture all of your footage IF you only have a few tapes to deal with. Most of the time when I have had corrupt footage, it was usually more than one clip and searching manually could take more time than just recapturing all of my footage.
Sometimes you get lucky… sometimes you don’t.
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Wayne Carey
Schazam Productions
http://www.schazamproductions.com