Dolby vs DTS
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The Dolby Digital vs DTS debate remains a long standing, insoluble debate among home theater enthusiasts and "Audiophiles" on the internet (via arenas such as usenet groups) and elsewhere. Debators compare the two audio codecs, Dolby Digital and DTS, arguing that one or the other 'sounds' or 'is' inherently better, yet consensus is rarely reached. This is a home theater forum equivalent subject for Godwin's Law. It is unlikely a consensus will ever be reached, due to the inherent difference in volume (DTS is naturally louder than Dolby Digital) preventing accurate comparison.
The argument for DTS: "DTS is much less compressed than Dolby Digital so it sounds much better than Dolby Digital." In this context 'better' means closer to the original source before the compression occurred.
The argument for Dolby Digital: "Dolby has a more efficient codec that doesn't need the extra bits to create an accurate recreation of the original sound." This argument maintains that the audio data left out by Dolby Digital isn't really heard by the human ear, so the extra data isn't missed on playback. The bitrate savings allow a higher video bitrate, in the context of a DVD.
Note: For 6-channel surround sound, Dolby Digital bitrates generally range from 384 kbit/s to 448 kbit/s (although capable of 640 kbit/s) while DTS bitrates range from 768 kbit/s to 1.5 Mbit/s (1536 kbit/s, the maximum bitrate CD and S/PDIF can allow). For more information on 'the audio data left out' see audio data compression.de:Dolby vs DTS