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 Posted: Sat, 22nd Jan 2005 12:24 Post subject: Svcd and Xvid dvdrip? |
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I'm just wondering that what is the difference between svcd and xvid dvdrip?
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| Posted: Sat, 22nd Jan 2005 13:00 Post subject: |
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SVCD is an mpeg2 based (same as DVD) which allows variable bit-rates of up to 2500kbits at a resolution of 480x480 (NTSC) which is then decompressed into a 4:3 aspect ratio when played back. Due to the variable bit-rate, the length you can fit on a single CDR is not fixed, but generally between 35-60 Mins are the most common. To get a better SVCD encode using variable bit-rates, it is important to use multiple "passes". this takes a lot longer, but the results are far clearer.
DivX is a format designed for multimedia platforms. It uses two codecs, one low motion, one high motion. most older films were encoded in low motion only, and they have problems with high motion too. A method known as SBC (Smart Bit-rate Control) was developed which switches codecs at the encoding stage, making a much better print. The format is Ana orphic and the bit-rate/resolution are interchangeable. Due to the higher processing power required, and the different codecs for playback, its unlikely we'll see a DVD player capable of play DivX for quite a while, if at all. There have been players in development which are supposedly capable, but nothing has ever arisen. The majority of PROPER DivX rips (not Re-Encs) are taken from DVDs, and generally up to 2hours in good quality is possible per disc. Various codecs exist, most popular being the original Divx3.11a and the new XviD codecs
Cut and paste job from VCD Quality 
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Cheez-It
Posts: 1106
Location: Rochester, NY
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| Posted: Sat, 22nd Jan 2005 18:06 Post subject: |
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vcd quality is crap
www.doom9.org
i remember when SBC came out, was very exciting 
anyways, there are many standalone dvd players (normal dvdplayers) that can play xvid/divx and so on...
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| Posted: Sun, 23rd Jan 2005 04:20 Post subject: |
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Divx 3.11a?
The last I checked, DIVX was 5.2.1
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Cheez-It
Posts: 1106
Location: Rochester, NY
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| Posted: Sun, 23rd Jan 2005 04:21 Post subject: |
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yeah i think that's a bit dated.
nero digital > xvid > divx
but xvid wins because of it's compatability and speed of encodes...
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_SiN_
Megatron
Posts: 12108
Location: Cybertron
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razor1394
VIP Member
Posts: 3571
Location: Sweden
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| Posted: Sun, 23rd Jan 2005 16:36 Post subject: |
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| Accelleron wrote: | Divx 3.11a?
The last I checked, DIVX was 5.2.1 |
Sadly, the groups still use the DivX 3.11 codec when they use DivX. At present time I haven't seen any popular groups use the codec. They mostly use XviD
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| Posted: Mon, 24th Jan 2005 01:51 Post subject: |
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That's probably because it's against TDX Rules. Don't know much about it but it's a good thing that they set some standards for compatibility. Wouldn't want to install a ton of codecs to watch some movies...
DivX 4.x and 5.x are totally different from DivX3.11 which is a codec that has been stolen from MicroSoft and was named after an encryption method or copy protection on DVD's. DivX3.11 (or MP4v3) was an MPEG-4 candidate but never made it, DivX 4/5.x are based on MPEG-4 (as is XviD).
Both 4 and 5 are commercial codecs, XviD is open source.
Feel free to correct me if necessary.
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