Graig Campanaro van Sharky Extreme heeft een DVD Player Buyer's guide gepost, met uitleg over het DVD gebeuren en met reviews van een aantal standalone DVD spelers. Hier een stukje over het verschil tussen Digital Theatre Systems en Dolby Digital 5.1:
DTS is a surround sound alternative to Dolby Digital 5.1. In order to replicate this sound, buyers will need either a separate DTS decoder or an audio receiver or DVD player with a built in DTS decoder. As with Dolby Digital 5.1, there are six discrete sound channels for playback through dedicated speakers--two front, two back, one center, and one subwoofer.
DTS uses a higher bit rate than Dolby Digital 5.1 does, and has a lower compression rate that requires more space on the DVD disc itself. It's not uncommon for the DTS version of a DVD movie to be offered on two separate DVDs due to the size of the audio versus the same movie needing only one disc in its Dolby Digital 5.1 version.
Because of the higher bit rate, many claim that the sound is clearer with DTS, allowing it to better replicate the sound of the original film soundtrack. However, because of the size limitations, DTS discs do not often have all of the extra features that Dolby Digital 5.1 discs may have such as interactive menus, a director's audio commentary track, added footage that was edited out of the theatrical release, etc.