Hypnos
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This is the saddest fucking thread I've ever seen Why do people try to post authoritatively on something they seem to know nothing about?
Let's just clear up some basics:
1. Production and screener DVDs are pressed using the DVD-9 format -- a dual layer format that can hold 8.54 billion BYTES (7.95 GB). That was the original format of this screener.
2. Group releases for DVD-R come in the form of DVD-5 -- a single layer format that can hold 4.7 billion bytes (4.35 GB)
3. The DVD specification was designed so that approximately 2 hours of high quality 720x480 29.97 fps video and audio could be fit on a DVD-5. This means the video would be encoded at approximately 5 Mbps. Studios usually make use of the extra space on the DVD-9 and encode their movies at significantly higher bitrates (generally between (6-7 Mbps). This higher bitrate produces noticably superior quality in home theater systems (HDTV's, etc)
4. At a little over 5 Mbps, a DVD-9 can just comfortably hold about 180 minutes of video with a 5.1 AC3 audio track and a 2ch AC3 track. This is why there was NOTHING else execpt a menu included on disc 1 of the original FOTR retail. You will also notice that there is a distinct improvement between the original FOTR and the extended edition which was encoded at a higher bitrate and split onto two DVD-9's.
5. Putting a 180 min movie (with 5.1 ac3, no less) on a DVD-5 requires encoding at approx 2.5 - 3 Mbps -- this is HALF what is recommended for good video and a THIRD of what most studios usually use for their releases. This bitrate is at the absolute bottom end of the MPEG-2 quality spectrum for 720x480 video -- in fact, you have to use special quantization matrices and a very good encoder to get a halfway decent result.
6. DVD video uses a 3:2 aspect ratio -- this is between 4:3 (traditional) and 16:9 (widescreen). When you play widescreen video on a display device that uses 4:3, the hardware has to stretch the video along the x axis using an interpolation algorithm to approximate the 16:9 aspect ratio. This means you are artifically increasing the resolution and it will actually tend to magnify any artifacts in the video.
7. SVCD video is encoded at 480x480 -- this is called half-D1 and is an approximation of standard NTSC resolution. This means that a well encoded SVCD will not look much worse than a DVD when viewed with a smaller, traditional TV.
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Hopefully that clears up some of the confusion about whether a CD can hold more than a DVD 
Anyway, nice release! Although I definately agree that since this is such a popular movie, it might be nice to release an original quality internal so people who knew what they were doing could either split it or downsample it according to their own tastes.
:: agreed on all counts, except that half-D1 is 352x240/288 i thought, rather than SVCD spec of 480x480/576.. i might be wrong as i dont deal in DVDR, but thats what im lead to believe.. -pHo
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01-11-2003 06:04 AM
Better than SVCD.
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