MEGADETH bassist David Ellefson checks in from the Sonisphere Festival in Sofia, Bulgaria on June 22, 2010 where the Big Four of thrash metal - METALLICA, SLAYER, Megadeth and ANTHRAX took the stage together for the first time for an all-star jam. Check out the newly-released footage below:

Another new trailer for the upcoming The Big Four: Live From Sofia, Bulgaria DVD and Blu-ray featuring Metallica, Slayer, Megadeth, Anthrax has been released. Check out two trailers below:

The release dates for The Big Four: Live From Sofia, Bulgaria DVD and Blu-ray are as follows: October 29th in Northern Europe, November 1st in the rest of the world aside from North America which is November 2nd. Warner Music will release the package in North America and Universal Music throughout the world.

A new video unveiling the packaging of The Big Four: Live From Sofia, Bulgaria DVD and Blu-ray is available below on YouTube:

In addition to the two-DVD set and the corresponding Blu-ray, there will be a limited-edition "super deluxe" box set including the DVD set, five CDs with ALL the music, a 24-page booklet, a poster, photos of each band, and a Big Four guitar pick.

The deluxe set can be pre-ordered in the official Metallica Store and the Universal Store UK, all orders from the official Metallica store will include a limited edition RED Big 4 guitar pick with one of four different print colors (white, black, silver or gold - see below), not available in stores!

The tracklistings:

ANTHRAX:

'Caught In A Mosh'

'Got the Time'

'Madhouse'

'Be All, End All'

'Antisocial'

'Indians'/'Heaven And Hell'

'Medusa'

'Only'

'Metal Thrashing Mad'

'I Am The Law'

MEGADETH:

'Holy Wars... The Punishment Due'

'Hangar 18'

'Wake Up Dead'

'Head Crusher'

'In My Darkest Hour'

'Skin O' My Teeth'

'A Tout Le Monde'

'Hook In Mouth'

'Trust'

'Sweating Bullets'

'Symphony Of Destruction'

'Peace Sells'/'Holy Wars Reprise'

SLAYER:

'World Painted Blood'

'Jihad'

'War Ensemble'

'Hate Worldwide'

'Seasons In The Abyss'

'Angel of Death'

'Beauty Through Order'

'Disciple'

'Mandatory Suicide'

'Chemical Warfare'

'South of Heaven'

'Raining Blood'

METALLICA:

'Creeping Death'

'For Whom The Bell Tolls'

'Fuel'

'Harvester Of Sorrow'

'Fade To Black'

'That Was Just Your Life'

'Cyanide'

'Sad But True'

'Welcome Home (Sanitarium)'

'All Nightmare Long'

'One'

'Master Of Puppets'

'Blackened'

'Nothing Else Matters'

'Enter Sandman'

Encore:

'Am I Evil?' (with the Big Four)

'Hit The Lights'

'Seek and Destroy'