if you add an mp3 file with read only attributes to iTunes, iTunes will not allow you to change the file's ID3 tags or delete the mp3 file itself later. Removing the read-only attribute after you add it doesn't help either! And if you go to the source file and delete it manually, the file shows up as "missing file" with a ! sign prefixed to it in the program, which you Still can't delete. Any ways to get around this? I just want to change the ID3 tags.