Found this from mvgroup
Playing Videos in the PC
Some explanations about codecs
Most of the releases in HD you'll find are encoded with DivX6, because they officially give support to HD content in high resolutions. But for what I've seen there is no much difference in encoding a 720p or 1080p in DivX6 or XviD when we talk about bitrates and quality. Both codecs don't use the new AVC (Advanced Video Coding) MPEG-4 profiles (also known as H.264), so encoding quality is the same than XviD.
When playing those HD videos, I tested different codecs, both XviD and DivX, plus Nero Digital, and I get better results with the XviD codec. XviD codec can play every MPEG-4 video in simple profile no matter what codec you used when encoding. Why?
MPEG-4 is a standart, made by the Motion Picture Elite Group (MPEG). Those guys are really who have developed all the technology behind video coding, the problem is that his job finished when published the technical information about the standart and its technology. They didn't made software for decoding nor encoding. Here is where DivX and XviD (and much more other codecs) play its role. They are software made by engineers by comercial purposes (DivX), or just for create an open source codec made by all the community (XviD). Both give MPEG-4 compatible content, and the main differents between both are in the characteristics they use from the MPEG-4 technology.
Which codecs get
Video
Trust me the best codec for playing MPEG-4 content you can get is this: XviD (much more fluid and more options).
Get the latest stable build from Koepi here:
Code:
http://www.koepi.org/xvid.shtml
I've noted that the colors are more real if u configure the Output Colorspace at RGB32, specially dark zones will be much more detailed. Configure it in the Decoder Options in the startmenu after installing. If some movie gives you aspect ratio problems, you can set the AR to 16:9.
Audio
For the AC3 audio files, you can get the latest AC3 Filter:
Code:
http://ac3filter.sourceforge.net
Subtitles
Get VobSub:
Code:
http://www.doom9.org/Soft21/Subtitles/VobSub_2.23.exe
Ensure the sub file is in the same directory than the avi file and they have the same name, or it could not work.
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