U2 From the Sky Down is presented on Blu-ray courtesy of Mercury Records and Universal Music Group with an AVC encoded 1080p transfer in both 1.78:1 and 1.33:1.

On the whole, this is a sparklingly clear transfer, at least with regard to the contemporary segments, which offer Bono and The Edge (for the most part) waxing philosophical about their history together, as well as some really fun sequences where they listen to old DAT tapes from the Achtung Baby sessions. Colors pop nicely, and there's excellent contrast and fine detail in these sequences.

The rest of the documentary is made up of archival footage which varies hugely in quality. Sourced from 16mm (and perhaps even 8mm in a couple of instances), a lot of this footage is (as should be expected) incredibly grainy, fuzzy, and at times damaged. It's still fantastic to see some of this older footage, some of which was just recently discovered when Guggenheim was given full access to the band's private archives. The historical importance of this footage far outweighs and quality issues.