Sve mu pise u helpu od WMP-a:
Copy protect music Specifies whether tracks copied from CDs in Windows Media Audio format are protected files. A license is required to play protected files. Licenses help protect the copyrights of artists by preventing illegal distribution. Selecting this check box may prevent you from playing the tracks on another computer.
Note
You should back up your licenses to a floppy disk periodically. If you reinstall or upgrade your operating system, your licenses could be lost even though you retained your protected files.
Na WIN pod kojima je ripao glazbu treba pokrenuti WMP i izabrati
Tools > Manage Licenses i tamo kopirati licencu pa je na isti nacin ucitati na drugim WIN.
Ako nema pristup licenci onda mu preostaje ponovno ripanje samo drugi put ce valjda biti pametniji pa malo prouciti gradivo
