m4a vs m4p
I purchased a whole album but found some songs encoded as m4a and some m4p (protected). If I recall correctly, the individual songs were all priced the same at $1.29 so I assumed they were all unprotected. All the songs are shown as "Purchased ACC" in my library, but the m4p files won't play on some devices. Why aren't all files from the same album encoded the same?
iMac, OS X El Capitan (10.11.5), null