Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unwatchable

The other reviewers are right: the audio track is on average 0.4 secs ahead of the video, which might not seem like much but is almost too disorienting to watch. Unfortunately the exact amount varies between songs. So after offsetting the audio track by 0.4 secs, it's watchable but still not great; if you can't repair it, don't waste your money.