save your original, copy it and mess with it with whatever attempts you want to try, the ones I usually do are "normalization" of the entire file and "hard limiting" of loud audience applause (usually only necessary on quiet acoustic type shows). sometimes in reverse order, the hard limit, then the normalize. save early and often, and once in a while rename when you like what you're hearing, to be able to save the edits up to that point. Last steps for me are usually dither down from 24 to 16 for cd copy and then cut tracks for cd copy. WHATEVER you do, save the unedited original on a disc, dvd or whatever to be able to revisit it in the future, when your skill set is larger or programs get easier to use. have some fun with it, it's a trip to make something sound better, like totally cutting out the sound of a drunk screamer guy!