lunar - give psytrance a go, especially progressive stuff. The biggest problem you'll have is most tracks take a minute or three to get going, and mixed albums are rare.

what i tend to do is save net radio streams (which are mostly 1 or 2 hour mixed sets) to computer and then transfer over to ps3. psy-radio (http://81.88.37.2:8010) is a good example, along with Chromanova, Swedish Mushroom, etc (all on shoutcast radio in winamp)