Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Concert is Great - DVD is bad!

Everything was great with ordering the DVD (Amazon was even the only place that we could find it).While watching, towards the end the DVD skipped over several chapters and no matter what we tried we could not get to those chapters. We had ordered one for us and one for a friend so we tried the second one with the same result.We have not received replacements yet, but so far Amazon has been very responsive in handling the return.Will update when issue is finally resolved.