Shrink checks the AC3 5.1 automatically but the DTS 5.1 is there just not checked. Whats the difference between the two and why does it check one and not the other?
DTS Digital Surround is a 5.1-channel surround sound format, similar to Dolby Digital. As such it is a competing format to Dolby Digital. DTS (Digital Theater System) features up to five discrete (independent) channels (front center, front left, front right, surround left, surround right; giving it the "5" designation) of full frequency sound (with respect to the range of human hearing, which ideally ranges from 20 Hz to 20,000 Hz), plus a sixth channel for low frequency effects (LFE). The LFE signal is usually reserved for the subwoofer speaker(s), or those speakers capable of reproducing low frequency ranges. The low frequency effects channel gives DTS the ".1" designation. The ".1" signifies that the sixth channel is not full frequency, as it contains only deep bass frequencies (3 Hz to 120 Hz).
basically, many people will agree that DTS 5.1 is "better" in reproducing a higher quality of sound.
DTS uses higher data rates (1.5 Mbit/sec or 754 kbit/sec, which are almost twice to four times higher) to encode the 5.1 channels of surround sound information than Dolby Digital (448 kbit/sec or 384 kbit/sec), prompting many home theater enthusiasts and industry experts to claim that it is superior to Dolby Digital. DTS surround sound encoded DVD-Video titles are far fewer in number than their Dolby Digital counterparts, and until recently were released months after their Dolby Digital counterparts. Thanks to the new lower DTS data rate (i.e., the 754 kbit/sec data rate), some studios (e.g., Buena Vista, DreamWorks, Fox, New Line and to a lesser extent Columbia TriStar and Artisan) have begun to release DVD titles that feature both Dolby Digital 5.1 and DTS 5.1. Prior to the advent of the lower DTS data rate, DTS DVD titles featured the full DTS data rate (i.e., the 1.5 Mbit/sec data rate) soundtrack, a Dolby Surround 2.0 soundtrack (for backwards compatibility with non-DTS equipment), and few (if any) bonus material since capacity of the DVD was limited due to the "data hogging" full-rate DTS soundtrack.
the reason shrink checks the AC3 normally is the fact that DTS require LARGE amounts of room and for shrink to compress your movie further onto a normal single 4.7 dvd, i can imagine the picture quality will be very poor, while the sound quality would be outstanding if the DTS 5.1 is included in said backup~ :)
the AC3 5.1 is "standard" as far as hollywood movies is concerned, dts 5.1 is taking it to the "next level" in terms of sound quality
hope that clarifies it up for you~ have a good day~
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i was ripping House of Daggers the other day and noticed it's DTS audio track was 1.3GB alone!!. Needless to say i only ever do AC3 5.1 anyway on all my movies.
Nice one, mine is a 20yr old Sony 14". I do movie only with DVD Shrink, miss off all but AC3 5.1, and the films always look fantastic on my dad's huge modern widescreen TV, regardless of how low the compression ratio is. And i always clean my spectacles before viewing :)
I personally think AC3 5.1 is the dogs danglies, no need for DTS for me.
Quote:I've never had a problem getting both AC3 5.1 and DTS
With DVD Shrink? I don't think so. DTS is usually at least 400-500MB. You say you've never had a problem? You would be able to notice on a smaller 27" tv.
Name some movies (DVD9s) where you kept both AC3 and DTS. More often than not you'll have to dump DTS (if doing a full movie backup ... extras and all). Are you doing movie only?
