[MPlayer-users] [OT] AC3 vs. DTS

[Rich Felker]

On Thu, Jul 28, 2005 at 09:14:37AM +0400, Vladimir Mosgalin wrote:
> Hi RC!
> 
>  On 2005.07.27 at 16:14:39 -0700, RC wrote next:
> 
> > Video is the weak-link on DVDs, and anything that reduces video quality
> > is very bad.  Some DVDs with AC3 look bad enough already (eg. Terminator
> > 2). Adding DTS makes the problem much worse.
> > 
> > Even if you can hear the difference...  who wants slightly better
> > sound, at the expense of having much worse video?
> > 
> > (Yes, I have a few DTS DVD.  They look horrible.)
> 
> And I have a few DTS DVDs which look wonderful. And AC3 only DVDs which
> look horrible. What's the point?
> 
> It's the matter of how disc was mastered, that's all. Most of disc have
> average bitrate around 4mbit/s, some go as low as 2.5 and some as high
> as 6-7. It is possible to have a long film with very high bitrate and
> dts track; calculate yourself.
> 
> If you want some real example: Dante's Peak DVD. Average video bitrate
> of 7.5 mbit/s, English and Russian 384 kbit/s AC3 tracks, DTS 768 kbit/s
> track. The length is 109 minutes. VOB files with film take 7.6G, some
> place was left for bonuses. Very good video quality, a example of how
> DVDs should be mastered.

Next time try a long movie, say 2.5-4 hours. :)

Rich