Backup process failed with code 40

I’m trying to create an iso image of my win 7 installation (which win 7 can’t do itself, except to a DVD) and the process fails 20 minutes in with this error. I’ve tried this a few times now and the pattern is consistent.

30.11.2010 09:21:52 Error writing iso file in PerformSimpleCopyToIsoBackup.
30.11.2010 09:21:52 Backup process failed with code 40

backup script and cutdown log attached, any help appreciated.


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The ISO implementation in CB has some limitations. This is the most likely cause.
Maximum 4GB size for each file and maximum 20GB for the entire ISO image.