I have a SanDisk Cruzer Glide 64 GB flashdrive.
I have an IMac computer, OSX Mountain Lion, and ITunes.
I dragged all my ITunes song files (several thousand) to the flashdrive in order to have them backed up. I have 2 questions:
How do I know how many GBs have been used up on my flash drive, or how many GBs are left?
I know many of my ITunes song files were duplicates, even a few triplicates. Is there a way to remove the duplicate song files from my flashdrive, in order to save space? (There is no need to have the same song file in my flashdrive 2 or 3 times.).