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Terrance 兄,
如有興趣, 請試一隻由金成武的武者回歸(Returner), 定位非常好, 好好玩,
特別是中段, 爆車一幕, 請試試.  |
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BB
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thank you bil! 
I think i got it! Thanks! |
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Indeed, Porkman is right. But not exactly. The most important
functions of Superbit are:
(1) The overall transfer rate of Superbit in video is from 8 bit to
10 bit in average when playing in the 10 bit DVD player.
Remark: Usually the average transfer rate of DVD Layer 9(In China
and HK, it is called as D9 but not the right term in DVD Production)
is from 6 bit to 8 bit. The transfer rate of DVD Layer 5 is from 4
to 6 bit.
(2) Usually, the performance of superbit is better than the original
Layer 9 not just because superbit has a high transfer rate. But
because the publisher, usually is SONY Tristar(a creator of
Superbit, usually remaster the sources of film in order to have
better quality in video and audio. Hence, out of the transfer rate,
the master sources of superbit and those of original Layer 9 is
different. If you do not believe, try to compare the opera in the
fifth element between Superbit and the layer 9 version.
(2a) Similar case in regional DVD. That is why usually DVD with the
same title in Region 1 is better than those in region 2. It is
because the sources are different. Betacam Vs .....(I forget the
name.)
You have this background, now let me answer your question, Terence.
The compression rate depends on which audio method the DVD will be
adopted. Usually, the compression rate of DVD layer 9 in Dolby
Digital 5.1 is around 30:1 (Original rate of master sources: rate of
DVD). The compression rate of DVD layer 9 in DTS is around 10:1.
Well, you might challenge me the soundtrack is independent from the
video sources as DVD since two sound files(DD Vs DTS) are installed
other than the videosources. Hence, my above rate should be limited
to the audio rate, not the video rate. But let me explain to you
that, theoretically speaking, the sound format of DD is compressed
in the track of video files while the sound format of DTS is
compressed in a format like one after one, i.e. audio video
video ...audio video video. Hence, theoretically speaking, DTS
claimed they had better sound reproduction without affect the
quality of video. The above rate is generally accepted to be the
general compression rate both in audio and video in the DVD
production.
As I said before in the background, the master sources are the most
affective elements in deciding the DVD quality. Well, pls. try to
compare the film of "My fair Lady" in general version of regional 3
DVD layer 9 with the special remastering version of regional 3 DVD
layer 9. The difference is very easy to see. Not believe, try the
Lord of the ring part II between the original DVD Layer 9 and the
film track from DTS DEMO 8. You will understand my words.
Too many theories,   Take it simple, the superbit is
a quality brandmark. But to save your money, I suggest you to hear
the comments from all brothers here over all title of DVD before
purchasing any version. So it is the best guarantee! Any brother
agreed with me?!  |
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BB
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oic...
咁我都想知...如果我將dvd內的movie抄落個hdd(如用dvd decrypter等軟件),
在壓縮方面以100%不壓縮的方法去抄的話...
抄左落hdd的movie在畫質同音質方面會唔會比經過壓縮的一般dvd好?
同埋我點先知道一般dvd是經過幾多percent的壓縮架?
謝謝!  |
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Not exactly correct. The video and audio data of DVD are both
compressed. Superbit DVDs can use a HIGHER bitrate to transmit video
data (because without those special features, there is more storage on
the disc)
than other regular DVDs. Thus, theoretically, Superbit DVDs have
better picture quality (due to higher data transmission rate). |
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我有關於dvd的問題想問大家...
超必碟-superbit dvd-
係因為要將一d關於movie的special feature放在d9碟內,而導致movie本身要經壓縮才可放入一隻d9碟內.
而superbit dvd係無任何special feature在內,可以將一整套movie原原本本不經壓縮地放入d9碟內,所以bit rate高d...
係唔係咁的原理?
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