This quality isn't spectacular by any means, but I use it primarily as a music discovery tool (which is what it's intended for) and then find better quality recordings (CD or Vinyl) for things I enjoy.  

Has anyone played through Journey on PS3 yet?  Absolutely amazing game. 

"In Rainbows" 45's are my go-to for demoing my system.  

yet another:  

A good one:  

No idea how I haven't listend to Red House Painters before, but "Rollercoast" is absolutely destroying me right now:   http://www.amazon.com/Red-House-Painters-1/dp/B00002SWSX   "Katy Song" might be the most devastating song I've ever heard.  

Really, anything by Albini.  Notably The Jesus Lizard Head - Liar era stuff:   http://www.youtube.com/watch?v=JoxXKKQYJYQ   Drums sound absolutely unreal, and IMO, better than even the Sufer Rosa and In Utero.  The new Cloud Nothing's album has some nice production as well for those who...

TJL!!!   http://www.youtube.com/watch?v=g0MgbQHh-Xg

Amazon is my favorite by far.  Instant downloading for unprotected MP3s means I can actually own the files and transfer them to anything I want to.  

Might not be exactly what you're looking for, but if you haven't heard any Morphine, I would highly, highly, highly, suggest checking them out for some really interesting and unique sax playing:   http://www.youtube.com/watch?v=985JGeGq_tc   http://www.youtube.com/watch?v=M34iZH4-qkI  

c'mon....gotta be Wilco's YHF