Grading is a very subjective thing. Because everyone's taste, ears, likes and dislikes vary widely, it would be a rare thing for two different graders to have the exact same reaction to every piece.
This system grades the quality of the video and sound of a particular piece only. Not the package. Not the performance. Not the best copy and/or video in circulation, but the actual video and sound produced by that particular concert.
|EX||Excellent. As good as it gets. In most cases these are professionally recorded for, for example, television or webcasts.|
|VG||Very Good. There might be a time or two where there are stripes and/or blocks visible, video and audio doesn't appear at the same time, shaking picture, etc., problems are spontaneous.|
|G||Good. You might see some stripes/blocks but not continuously. Sometimes shaking picture can be present. Sometimes video and audio doesn't appear at the same time, etc.|
|F||Fair. Watchable, but stripes/blocks are continuously visible. Picture might be shaking all the time. Audio could be better.|
|P||Poor. Hardly watchable. Video is out of focus almost constantly. The band is barely visible due to camera position. Lots of shaking of the camera. Very poor audio, etc.|
|EX||Excellent. As good as it gets. In most cases these are professionaly recorded for, for example, radio or webcasts.|
|VG||Very Good. There might be a time or two where there's feedback, the singer is too far from the mic, the audience can be heard in some posints, etc., problems are spontaneous.|
|G||Good. You might hear some noise/hiss. Audience conversations are clear but not disturbing or continuously.|
|F||Fair. Audible but may require you to listen harder to hear all the instruments individually.|
|P||Poor. Sound is very bad and hardly listenable.|
|AUD||Audience. It has been recorded by someone in the audience.|
|SB||Soundboard. Recording taken straight from the venue soundboard.|
|BC||Broadcast. It has been recorded from tv, radio or a webcast.|
This should indicate whether the recording contains the entire setlist or not. Even if the pauses between songs have been removed, the bootleg is not considered a full show.
This indicates if the bootleg is the original untouched recording.