Currently Being ModeratedApr 6, 2013 11:14 AM (in response to mackerm)
It's possible that some are, if the user just gives up without trying very hard to trouble-shoot... However, since one of the early trouble-shooting steps is to Restore the iPod (one of the "5 Rs"), if the hard drive is physically OK and the problem is data-related, a Restore will fix the problem. A Restore erases the hard drive, so any data fragmentation will be goine after re-syncing.
Also, severe data fragmentation is probably being grouped into the cause of "data corruption." They are not the same, but most people would not distinguish between the two when trouble-shooting. Try doing a Restore to fix any data-related problem.