Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

If I could give this half of a star I would. I am a big fan of Nirvana, but this was a total disappointment to me. The tracks sounded awful. I felt like I was ripped off in every sense of the way. I took it to a buy-trade-sell place and not even they would offer me anything for it, which shows you the poor quality of this album. A word of advice; DO NOT BUY THIS!!!!!
Negative

I purchased for my guest room for overnight stays for family members.this holds up very well especially for grandchildren
Positive

This series of DVDs offers some fine performances along with a great deal of annoyance. The top menu offers no access points to most of the listed repertory. Tried on several different machines the problem is persistant. At least the price is reasonable if you don't mind fast forwarding through all tracks to get to the later pieces.
Negative