I've been having a blast listening to some of the free download of their final concert called Mississippi Nights - St. Louis, MO, Uncle Tupelo - 1994-05-01. The opener, Neil Young's Everybody Knows This Is Nowhere, sports a pretty cool wall of geetars and the sound isn't too bad either, although they're just 128K.

http://www.glidemagazine.com/downloads.php