As Stringer mentioned, Rachel's site is a start but it does primarily cover the officially released material (including many promos). http://www.backsideoftheorb.com/index.php Lazlo's discog is far more complete but only up to Cydonia. You can thank many of the members here for that (which doesn't include me unfortunately) :) http://www.swcp.com/lazlo-bin/discogs?orb Discogs is not nearly as complete as Lazlo's (yet), but it's a very active site. http://www.discogs.com/artist/Orb,+The As far as Bikes and Trikes go - there are two versions of that album: the Japanese version and the UK/US version. They are quite different from one another in pretty much every way. http://www.discogs.com/release/237085 http://www.discogs.com/release/308368 Speaking of which - why can't we keep updating Lazlo's? The work is piling up!