If you had to push me for a favourite track from the album, I'd have to say it's the title track: Origin Unknown. There are many awesome songs on there though. Feel free to snap it up!
As well as the Origin: Unknown? release, I've just got back from a great weekend of music making arranged by one of my mainland-based friends, Dan. Five musicians each with their own taste in music got together on a farm in Dorset and spent three days writing, rehearsing and room-recording four songs. You can hear cleaned-up versions on SoundCloud and Last.fm, and can also see YouTube videos here.