Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unbelievable Sound!!

I'm a huge Metallica fan and listening to this DVD was like hearing it for the first time. The sound is incredible. I was pretty much swallowed by all the instruments coming from all over the place. I definetly recommend this to any Metallica fan. You must have a complete surround sound system including a subwoofer to get the whole effect. I think DVD-Audio is going to be the next great thing. I can't wait until more releases!!Carlos