How Do You Unblock AAC Codec On A Song Bought From iTunes?

Question

Mac:
shows a locked sign on the symbol of song when on the desktop. When used on different computers it is asked to aunthiciate. Codec says " AAC (Protected)"

Answer 1

The only way that I've found is to create a playlist and burn them to a CD (preferably a CD-RW so you can reuse them), and re-import them. Hope this helps!