[Five]

^what Lynne said

best of all is when you can find a fansite that lists "ROIOs" like

livenirvana.com
toolarmy.com
metlive.com
splra.org

etc etc

LN is the best of the lot that I've ever seen (somebody show me better!). these lists are especially great when you're trying to determine if what you want to share is the best quality that circulates. usually you can contact ppl who run these sites and get them to rapidshare you a sample of a song from what is currently considered best source. If there's a cleaner copy out there it is better not to circulate something that's crappier.