I've been a PC guy forever, and I know nothing about Mac's at all! I just bought my daughter a Mac Book Pro, and the salesman that sold it to us said that her iTunes music that is on our dell would not be recognized by the new Mac. He said that it could be "converted" so the Mac would recognize it!?!? Can anyone help an old PC guy out and TRY to explain what I need to do to make this happen... Thanks in advance!