Slayer Reign in blood(Parental Advisory)- All songs in album are downloadable but the song RAINING IN BLOOD. Also the non parental advisory album is not available.
Slayer South of Heaven (Parental Advisory) - All songs in album are available.
Slayer God Hates Us All (Parental Advisory)- All songs in album are available but the song BLOODLINE.
Slayer Crist Illusion (Parental Advisory)- All songs in album available.
municipal waste- hazardous mutation - All songs available but the song BAND OVER. Well in the album on the marketplace their are two songs both titled bang over, one isn't available the other is though. So bangover is available...technically..
american head charge- the feeding -(Parental Advisory)- All songs available.
puya- union - All songs available.
amen- death before musick - (Parental Advisory) - All songs available but..EXTERMINATE!, WE GOT THE BAIT, SORRY NOT SORRY, BRING ME THE HEADS, F*CK IN LA, THE SUMMER OF GUNS. The songs not available need to be bought. In other words not available through zune pass.
amen- amen - (Parental Advisory) All songs available.
sepultura- chaos ad - All songs available.
sepultura- roots - All songs available.
sepultura- arise - (Remastered) - All songs available.
sepultura- roorback - (Special Edition) All songs available but the song BULLET THE BLUE SKY
sepultura - roorback - (Not special Edition) All songs available but the songs OUTRA, BULLET THE BLUE SKY[*]
sepultura- beneath the remains (With Bonus Tracks) - All songs available.
sepultura- dante XXI - All songs available.
sepultura- against - All songs available.
metallica- garage inc. (Parental Advisory)- Only one song available the song ASTRONOMY, the other songs in album must be bought.
megadeth- the system has failed - All songs available.
megadeth- the world needs a hero - (Parental Advisory and Non-Parental Advisory) - All songs available.
pantera- far beyond driven (Parental Advisory) - All songs available.
Wasn't sure if you wanted the parental advisory version or non parental advisory of the albums. So...picked parental advisory and check if songs are available or not.
But yeah there you go.. if you got any more questions about one of these albums just
pm me. Also
please no $zB, but the
rep will do fine. Always love
rep 
. But yeah enjoy!
Edit: Thank You for posting this list of albums, got to see some cool album covers. Which these albums have sick Album art was fun searching for them.