Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buyers beware

I found this DVD during a trip abroad, and - considering the very limited number of music DVDs with 50s rockers such as Gene Vincent - I was more than happy about it. Until I played it, that is. To call the sound & picture quality horrible is an understatement. (Unfortunately, the description of the primitive recording technology used is written on the INSIDE cover, and is thus hidden until you unwrap the DVD, and then it is too late.) Anyway, it has been sitting on my shelf for about a year now, and will probably remain there without ever seeing the inside of my DVD player again. I hope I can save some other would-be buyers from a similar disappointment.