Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice album but bad DualDisc

The huge hype around DualDiscs is the option for multichannel ("surround") mixes of albums to be presented on the DVD side. Think of it - a multichannel mix of an entire album that can be played on anyone's DVD player, assuming you've got your DVD player hooked up to a nice surround sound system.And yet, strangely, this DualDisc of Avril's second album is not available in multichannel, but rather is only in stereo! True, it is a slightly higher quality, and there are some videos on it, but where's the surround mix of the album?