All my music is stored on my back up HD, backed up with Time Machine. I cant alter any of the files on it. Im trying to move my music to a new drive and I get tis message. This is the exact message I get “You can’t copy “Empire burlesque” because it has the same name as another item on the destination volume, and that volume doesn’t distinguish between upper- and lowercase letters in filenames.”. But it won't allow me to make any changes and just stops at the point of getting this message.