1. The use of anime even on point 3 still isn't covered by the other 4, and it still doesn't justify the use of music on ANY. 2. If the dvd's have software to keep from being copied, you're shit out of luck because software meant to be able to bypass that copy protection is illegal. I beg to differ...
Here is the revelent law for Fair Use. Sec. 107. - Limitations on exclusive rights: Fair use Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for ...