I just got done (after six crashes) with an attempt to unlock my library:

Started with
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1098 Protected tracks
Brand new Memorex High Speed CD-RW (12x)

Ended with
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1087 MP3 tracks generated

On the order of 300 corrupted or truncated tracks.

Results
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My iTunes library is completely screwed. I now have 1087 suspect files sprinkled through it, and no simple way to find and remove them.

The most visible corruptions are tracks that were 2-3 minutes long and are now 2-3 seconds long.

I'm also a bit curious about the 11 files that got lost, but I'll be generous and guess it lost those while crashing.

How DRMDumpster could be better:

1) Stop crashing.
2) Do some basic checks on the imported tracks to see if they fit the profiles of the tracks they're supposed to be replacing. Start with length.
3) Stop relying on physical media. The corruptions pretty clearly result from the read/write cycle to the CD-RW. This whole thing should be done on a virtual CD.

To the authors: Sorry to pan your product, but an iTunes library full of corrupted MP3s that I have to dig out by hand leaves me in a considerably worse position than I was when I started.