Buy them is easier said than done... If you're lucky you might find a few CD singles (the vinyl seems more common) and promos / remixes crop up on eBay. There are several mp3s + videos available on the band's website www.dorp.co.uk if you hunt around. Their MySpace www.myspace.com/dorp has some recent stuff to stream. They are re-recording their album - sounds good (but different) so far!