Each groups bootlist is divided into three sections: live performances, studio recordings, and commercial boots sourced from multiple shows & fan compilations. Length is determined by 80 minute CDRs. The quality rating is a determination made by myself and is merely my opinion. Here is my grading scale:
A+/A-: An excellent boot. This class is usually reserved only for sounboard and FM recordings.
B+/B-: A good boot, usually an audience recording.
C+/C-: A mediocre boot, probably either an incomplete audience boot or one with major errors.
D+/F: A basically untradable boot. Don't get these unless your collection needs them.