Rip progress halts and does not continue

[John Eckerdal]

Sometimes when ripping Rip just stop and does not progress further.

The application is not dead and I can use the UI and exit the application.

I am using "Copy Image", have done "Detect Pregap" and then started ripping. AccurateRip information for the disks is not available. I use iTunes to get the metadata.

It usually stops at "Verifying copy integrity" and "ETA: less than 5 seconds".

The following message is available in the console log:
11-08-28 16:17:12 Rip[8125] *** -[NSCFArray insertObject:atIndex:]: attempt to insert nil

Which corresponds to the time when the stop happens.

The following message is also available in the Rip log:
[2011-08-28 16:16:58 +0200] Accurate Rip checksum calculations failed

Since they are so close I guess that they are related?