Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Band great, But why reviewers did not talk more of deficient audio

The disc of this show with this band and performance is good enough to keep, but considering this is a Blu-ray disc, the audio MUST be flawless, and unfortunately is not.This Blu-ray disc has several issues with audio, although the video seems fine. The harshiness of the audio recorded from the sax and the electric guitar are overpowering an otherwise balanced piano and bass.The accoustic guitar of Clapton was almost silent in one of the songs, he was playing most of the song while the camera was filming the silent strings.The content is still valuable enough to keep it as a good memory.