I have both the two boxes of Ligeti Dave Hurwitz mentions here -
Dave's Faves No. 220 (Ligeti: Clear or Cloudy?)
Click to view
Gyorgy Ligeti - Lux Aeterna
Click to view
Gyorgy Ligeti - String Quartet No.1 (Arditti String Quartet)
Click to view
ENJOY
I also have these from the Sony Edition.
Yeah, a hardcore Ligeti fan.