What a nightmare! My entire I-tunes library is kept on an external HD that is formatted as MAC OS Extended (Case-Sensitive, Journaled). I formatted this external over a year ago when I moved to Mac per the genius's recommendation at the Apple Bar. Today, I had the sneaking suspicion that it was time to migrate to a new External HD as mine has some wear on it and I kept getting weird error messages during the transfer of the I-tunes library (meaning it just stops and give me a very windowesque error message). What I have been able to tell is that MAC OS Extended (Case-Sensitive, Journaled) will not correctly transfer to regular old MAC OS (Journaled). Am I stuck in "Case-Sensitive" land forever with my I-tunes Library?????? Apple Care offered no advice except to point out the problem. I can format the new drive as Case-sensitive but then it appears that I'll be stuck with doing the same thing when I get another External HD in the future. Please help.