[1] It is the first major release of a purely digital online box set by any recording artist.

[1] It contained the complete set of U2 albums, singles, live, rare and previously unreleased material from 1978 to 2004, with a total of 446 songs.

The video-capable U2 iPods included a code for a 33-minute video of live band performances and interviews.

Most of the previously unreleased songs were from the band's All That You Can't Leave Behind and How to Dismantle an Atomic Bomb sessions.

"Shadows and Tall Trees" was the final track on their first studio album Boy, released in 1980.