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  1. Member
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    i bought a dvd that can play Divx.version3/4/5 and mpeg4 format.
    i don't know and asking can it play dvix files. i have Dr. Divx and after that wheneve i play any movis it says the file type is mpeg4. if i play it on mmy dvd will it work.
    also i try encoding with Dr. divx but the picture quality was not nice and the sound was not good.
    what is the different between mpeg1,2,3,4. and which one can play on my dvd.
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  2. Member edDV's Avatar
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    Mpeg 2 is the standard for current DVD.

    Mpeg 4 is a new technology that will be used for many purposes in the future*

    Divx is a "non-standard" but popular highly compressed format based on Mpeg4. Your player supports some form of Divx playback and your Dr. Divx can probably encode those forms.

    This is currently a non-standard environment so you must take an active role to assure your encoding matches the player's capabilities.

    * Mpeg4 technology can be scaled from cellphone or PDA display to HDTV. DirecTV and Dish have settled on a form of Mpeg4 for the new HDTV satellite services. HDTV DVD will support Mpeg4 based technology in a H.264 implementation. Microsoft WMV (RC-1) technology is also based on Mpeg4 and will be includied in the new HDTV DVD standard. The primary standard for both HD-DVD and Blu-Ray DVD will remain a form of MPeg2. Digital broadcasting in the USA is also MPeg2 but MPeg4 can be used as data streams.
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    DivX at least v4 and 5.x are MPEG4 video codecs. The only thing non standard about them is their use in avi.

    When your player says that it supports MPEG4 it means that it supports MPEG4 video, most likely only in an avi or divx (modified/hacked extension to avi) container.

    Problem with avi as a container is that different video codecs have different fourCC's.
    DivX 4.x/OpenDivX = DIVX
    DivX 5.x = DX50
    XviD = XVID
    3ivX = 3IV2
    libavcodec MPEG4 = FMP4
    etc.
    All are MPEG4 and all should play on your player, however it may not recognise all the fourCC's.

    MPEG4 is about much more than video though and MPEG4 video in the offical mp4 container is all the same, there are no fouCC's.
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  4. Член BJ_M's Avatar
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    mpeg 4 can also be in a quicktime file
    "Each problem that I solved became a rule which served afterwards to solve other problems." - Rene Descartes (1596-1650)
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  5. Member edDV's Avatar
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    My main intent was to point out that MPeg4 is not part of the current DVD standard and each player manufacturer is doing their own thing specific to that machine only.
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  6. Член BJ_M's Avatar
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    Originally Posted by edDV
    My main intent was to point out that MPeg4 is not part of the current DVD standard and each player manufacturer is doing their own thing specific to that machine only.

    yes , your right ... sorry
    "Each problem that I solved became a rule which served afterwards to solve other problems." - Rene Descartes (1596-1650)
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  7. Banned
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    MPEG simply means "Motion Picture Experts Group", a consortium of folks who think up standards for video.

    Often when someone says "MPEG Video" they mean MPEG1 or MPEG2, both of which are lossy compression methods.

    MPEG1 is often seen as standalone files. If you see a file named "myfile.mpg", it's almost assuredly MPEG1. Windows has included native MPEG1 decompressors since Windows 98, and although some still prefer other implementations, the large number of standalone MPEG players has dwindled to nothingness - most 3rd party players still just use Microsoft's decoder.

    MPEG2 is most often seen as a DVD, SVCD, or video stream. DirecTV and Dish network use MPEG2 data streams to transmit their video. You will practically never see an MPEG2 file just floating around, although m2v files are common intermediaries in any video work which involves DVD's. Sometimes you'll see a .MPG file that has MPEG2 in it, but not very often... and usually only as a stepping stone to get said file onto an SVCD.

    MPEG3 either was never released as a standard or was largely skipped over (although you'll see MP3 - which is MPEG LAYER 3, not actually MPEG3).

    MPEG4 is a video compression scheme that isn't implemented standalone. You'll hardly ever see an "MPEG4 file" floating around. It is implemented by a variety of people as an AVI codec, although there's no real reason why it couldn't also be an OGG codec or whatever else. Once in a blue moon you see a .mpeg4 or .mp4 file, these are almost always just renamed AVI's.

    DIVX3/3iVX = pirated version of Microsoft's MPEG4 codec.

    DIVX4/DIVX5 = DIVX.COM's version of the MPEG4 standard implemented into a Codec.

    XVID = originally based on the stolen DIVX3 codec, now "mostly" legitimate and being developed by the XVID group. I say "mostly" because they all refuse to compile it, citing bizarre licensing reasons and whatnot - I personally think they're just afraid of being sued.

    Did that help?
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  8. Member edDV's Avatar
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    Also WMV, and RC1 are based on MPeg4

    H.264 is the streaming form, part of the HD DVD standard and will be the dominent form of PC media transfer in the medium future.
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  9. Member
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    You can't use MPEG4 in ogg as it is not free.

    XviD, like DivX 4.x was originally based on OpenDivX. Not on DivX3 or anything else stolen

    The "bizarre licensing" is exactly why they fear being sued. To provide binaries you need to pay fees to the MPEG-LA whether you are charging for the download or not.

    MPEG4 is about more than video and there are plenty of real mp4 files out there.
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    "MPEG4 is about more than video".

    Exactly the kind of bizarre doubletalk one would expect from an XVID proponent.

    Sure it's about more than video... it's also about TRANSMITTING video, COMPRESSING video, and PLAYING BACK video.

    Jesus.
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  11. As above Gurm.

    XviD is not based on the hacked MS codec. If it were, then there couldn't be any source code since the MS codec source code is hidden in Redmond.

    XviD is completely proprietary free codec and it works well. It is not "officially" distributed as compiled code because of licensing reasons as stated above. I agree they are bizarre but hardly the fault of the people working with XviD.

    Your assertions that XviD is based on the hacked MS codec is completely incorrect, apart from the historical fact that DivX3 was "pretty good" and a group of programmers wanted to create a legal equivalent de novo.

    Regards.
    Michael Tam
    w: Morsels of Evidence
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  12. Banned
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    I merely point out what several people - far more knowledgeable than yourself and I - have noted over time.

    XVid has always displayed some bizarrenesses. Various builds failed in various spectacular ways - some of which were very similar (suspiciously similar, in fact) to the ways in which the pilfered codec could fail.

    Plus, every time I mention the original basis for it, people in every forum jump up and down and get AWFULLY testy.

    If you walk into a room, point at someone, and say "you're GAY" in a loud voice... the closeted gays will yell "NO I'M NOT YOU CAN'T PROVE THAT" the loudest, whereas the actually straight will just go "huh?"

    Same principle applies.
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  13. Member
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    Here: http://www.xvid.org/cvs/chora/cvs.php/xvidcore?login=2

    have a look at the source if you like. As I already said XviD was originally based on opendivx, which was written from scratch. It hasn't even used any opendivx code for ages either.

    aac is an audio codec and that is part of MPEG4 specs, there are also subtitles, menu's, etc.. As I said it is about a lot more than just video.

    One thing about opensource projects is that there really is nothing to hide.
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  14. People are getting testy because of the absolute baseless untruth of your assertion. You have obviously never checked the veracity of it yourself.

    As for your "far more knowledeable" people, they are conspiracy theorists and their "knowledge" is highly suspect.

    XviD is open source. You can CHECK and compile the code yourself. There is no MS code in it.

    As for "failed in spectacular ways", what ways? I have used XviD now and then and it always works as expected. I suspect you are simply quoting somebody else's uninformed opinions rather than from any personal experience.

    As celtic_druid has already posted before, XviD (and indeed also LAME) does not directly release binaries because of licensing issues with the MPEG group.

    Regards.
    Michael Tam
    w: Morsels of Evidence
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  15. Banned
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    You've never seen XVid fail? You've never had an XVid go all bloppy because you were using nick's binary and the person who built the video used koepi? Funny, that happens ALL THE TIME. Like I said, it's better lately... but 6 months ago finding the 'right version' of xvid was like pulling teeth.
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  16. you guys are waay OT...gotta stop watching this topic....
    "As you ramble on through life, brother, whatever be your goal - keep your eye upon the doughnut and not upon the hole."
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