Once we get past the Ozzy comparisons, we can move on to enjoying Ronnie James Dio's iteration of Sabbath as simply a different--and excellent--metal band. This new full-career compilation shows a group entering the genre's glossier era with gruff guitars and uniquely disquieting vocals.

Get schooled in the most important rules with THE RULES OF HELL, Rhino's new five-disc set presenting Black Sabbath's entire Dio-fronted catalog in one sleek black slipcase box. The collection pulls together all three of the group's studio releases: Heaven And Hell - now also the name under which the Dio-led Sabbath incarnation is once again touring and recording - Mob Rules and Dehumanizer, plus their double-live album, Live Evil. The beyond-heavy box also features extensive liner notes including new interviews with the band members.

Each album has been remastered for the first time since it was originally released, serving up full throttle sonics on these seminal metal titles:

# Heaven And Hell, first out in '80, is now regarded as one of Sabbath's all-time best, introducing epic cuts including "Neon Knights," "Die Young" and the title track, which is featured in the game Grand Theft Auto IV.

# Mob Rules ('81) features classics including the title track, "Falling Off The Edge Of The World," "Turn Up The Night" and "The Sign."

# Live Evil, the group's 1982 live double album, is a testament to the stage might of Sabbath's Ronnie James Dio, Tony Iommi, "Geezer" Butler and Vinny Appice (who replaced original drummer Bill Ward in '81) line-up on fourteen blistering tracks.

# Dehumanizer ('92), regarded by many metal fans as a "lost classic," came out after a decade long hiatus and rocks with tracks including "I," "Computer God" and TV Crimes."

The incarnation of Black Sabbath featuring Ronnie James Dio was born in 1980 when founding members Tony Iommi (guitar) and Terry "Geezer" Butler (bass) added the former Elf and Rainbow lead vocalist to the group. The line-up's short but influential first stint together added an unforgettable chapter in Sabbath's storied history. Then, in 2006, they delighted fans worldwide by rewriting the rules again - Dio, Iommi, Butler and Appice reformed under the new band name Heaven And Hell to record new tracks for Rhino's compilation Black Sabbath: The Dio Years. The chemistry generated by their reunion led to an acclaimed world tour and live album and DVD in 2007. Heaven And Hell will continue to tour, and are currently recording their first studio album together since 1992.