From the Music CD - Deluxe edition.
disc 1, Original album. Black dog --
The battle of Evermore --
disc 2, Companion album. Black dog (basic track with guitar overdubs) --
Rock and roll (alternate mix) --
The battle of Evermore (mandolin/guitar mix from Headley Grange) --
Stairway to Heaven (sunset sound mix) --
Misty Mountain hop (alternate mix) --
Four sticks (alternate mix) --
Going to California (mandolin/guitar mix) --
When the levee breaks (alternate UK mix in progress).