I generally don't visit this forum much but thought some folks might be interested in a little survey / test I'm conducting (started out at Audio Asylum's Computer Audio section).
Basically I wanted to get some data from audio enthusiasts about audibility of high bit-rate MP3 ~320kbps vs. original CD rip. The test should be pretty straightforward - maybe something to try over the holidays :-). I've tried to gear the survey to collect data about the equipment being used since I'm more interested in the audiophile enthusiast rather than average subway commute portable player demographic.
Here's the blog where the audio files and test procedures are described...