Which songs are DRM-protected?

I've been looking through the postings, but I have yet to determine how to know which songs in iTunes are DRM? Some I downloaded from Napster several years ago, some have been copied from CDs, and others the wife has bought off of iTunes.

I want to use my BB as a media player, but don't want to load a bunch of stuff that won't get recognized/played.

Thanks!

Can't answer your iTunes question, since I don't use it. Songs I bought from Walmart are DRM protected. Putting DRM protected songs ob a BB isn' really a problem since the Media Player just skips the protected song and goes on to the nex. Also if you use Roxio to load your songs, you will know which ones are DRM protected since it won't allow you yo even load them.