How many GBs left in flash drive
I asked this question on the SanDisk flashdrive forum, but they advised me to ask it here. Don't know why. It concerns transferring songs from my ITunes to a SanDisk flashdrive. Here is my question:
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:
1) How do I know how many GBs have been used up on my flash drive, or how many GBs are left?
2) 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.).
iMac, OS X Mountain Lion (10.8.2), iPhoto 8.1.2 (424)