Thanks for the info and link. It sounds interesting. Just the other day after upgrading to the new 8830 OS, I needed to reformat my 8gig SD card from 4gigs back to 8gigs. But before I did that I wanted to make sure my computer's backup version and the SD card were in sync with both containing the same files. Some of the mp3 files on the BB had been tweaked to get album art which was missing so my BB/computer files were not identical.
Sounds as if this tool would have helped.