Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Inferior sound

The DVD side is Dolby 5.1 which is a highly compressed sound format to be used as a sound track for DVD video to fit it all on the disk. Put it in the computer and check the size of the files compared with the cd. How could it sound better? So much of the musical information is missing. If you are mainly using the DVD disk volume for audio then you can use DVD audio which uses more volume than any cd can take. Using volume as a guide Dolby 5.1 is inferior to DTS which is inferior to cd which is inferior to 96/24 PCM which is inferior to sacd which is inferior to DVD audio. So why is Sony pressing these inferior formats .... because they now realise it is a good idea to have video and surround mixes in their music disks. But they do not support DVD audio as it is in competition to their SACD format and so you are given an inferior sound format instead.