I got an "Ampd Mobile - But my carrier is verizon"

Model Hollywood / Verizon E815

My issus is "ampd live suck" that have a LIMITED music of rock & metal
so what i'm looking for is "legal prepaid music" that i can use for my phone

I look at ituned and they told me is can be compatible if i burn the music to a cd and it will unlock the AAC protection but they say the sound quality will the be the same quality

they suggested that i look at EMI Music and other site that deal with "legal prepaid music"

any help from here will be appreated