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div-x vs dvd

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  • #16
    To get back on the topic:

    YES, Tomshardware writer is way off. He sure needs to get some new glasses or contacts.
    There are so many errors in the article, regarding what is what, and the writer sure doesn't know what an AVI-file is; a container for data, nothing else.

    I do not take the article serious in any way, how can I when the darn thing is misleading (and why doesn't he store the pictures in a non-destructive format?!?).

    That said, I would like to state, that it is possible to create a DVDrip which resembles the original in such a degree, that you'll not notice the difference except in really complex scenes. For instance, I saw Johnny Mnemonic the other day, and the scenes where you look at the internet (through the headsets), gets really distorted (mosaic) when compressed with DivX. But the rest of the film presented a good quality picture. Way above VCR and very very close to DVD.

    I would say, giving some finetuning in the algorithm, these scenes could also get to very high quality levels.

    On the other hand, giving the DivX-codec some bad material to work with, and it will produce a very blocky picture. I have not yet seen the samples Tomshardware have provided for DL, so I will not commend on them, but let me assure you: encoded right MPEG4 video can get really close to the perfect. Almost as close as MPEG2 (which anyway consumes 5-10 times more bandwidth, just to give it the edge over MPEG4).

    Ghydda
    As I always say: You can get more with a kind word and a 2-by-4 than you can with just a kind word.
    My beloved Parhelia was twotiming with Dan Wood - now she's gone forever and all I got is this lousy T-shirt
    |Stolen Rig|RetroGames Rig|Workstation Rig|Server Rig|

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    • #17
      --------------------------------------
      For instance, I saw Johnny Mnemonic the other day, and the scenes where you look at the internet (through the headsets), gets really distorted (mosaic) when compressed with DivX.
      --------------------------------------

      Variable bitrate is supposed to fix this. When I select VBR with the Ligos encoder, though, it doesn't seem to help a whole lot. Any opinions on VBR?

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      • #18
        DivX uses VBR, both the Low-motion and the Fast-motion codec (same codec used with different encoding parameters internally).

        Typically a setting off 900 kbit gives BW-peaks of 4-5 Mbit with DivX.

        Ghydda
        As I always say: You can get more with a kind word and a 2-by-4 than you can with just a kind word.
        My beloved Parhelia was twotiming with Dan Wood - now she's gone forever and all I got is this lousy T-shirt
        |Stolen Rig|RetroGames Rig|Workstation Rig|Server Rig|

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        • #19
          Saw a VH1.com 300K asx "MPEG4" of a Fastball video today. Streamed great, but this was the same crappy VHS SLP dubbed to VHS SLP quality I get when I make an ASF with Media Studio Pro :-(

          Either VH1 is still using the old MPEG4 codec
          or the impressive quality I saw was a fluke do to the subject matter of the Eminmem infomercial parody video.

          --wally.

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