Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Audio Problems

I bought a copy of this DVD and was very disappointed with the audio quality of the 5.1 mix, so much so that I took it back and got another disk, thinking that the disk I had was faulty. Unfortunately the problem is in the master. The Left channel of the 5.1 mix is missing, giving the whole audio image a heavy bias to the right. I was also disappointed with the video quality. The picture is quite grainy and looks like it was shot on miniDV and not on a broadcast quality format. Delta's performance is fantastic but this product doesn't do justice to one of the most talented performers in the world. Shame on Sony BMG !