If you think this is bad, go to livemetallica.com and download the free 1982 concert. That has Mustaine sounding really bad!!!!! Wonder if Metallica released it for that reason?
I'm not usually a big fan of Live versions, mostly because the band members tend to be drunk and/or high and don't get things right. There are a few exceptions though.
Nothing more disappointing than paying for a concert, just to have the singer get up there and completely forget what he's doing.