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    A proposal, for converting video in a small file and use a correct format

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    • I
      italianbear last edited by

      a proposal, because most users do not aware about converting video file format more suitable to the just and the video quality.

      videos are often of low quality with high bitrates, and saved, the files or formats that are heavy.
      an example
      http://tracker.gaytorrent.ru/details.php?id=130504
      salkvato window in 1.6 giga
      the same filer to mp4 would not have exceeded the 700 megs or less.

      a site to convert a video in small size but high resolution is not there?

      sesibilizzare to use video formats not large can be useful?

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      • P
        Popper Global Moderator last edited by

        That video you link to is encoded with 0.16 bit per pixel, which would be "just" using a codec like MPEG-4 ASP (Xvid/DivX 5.xx).

        Since it uses the more modern VC-1 codec, in the range of efficiency of the MPEG-4 AVC (aka h.264 or MPEG-4 part 10) it will have quite good picture quality (almost DVD like, if the source was DVD or better), while your MP4, if using the MPEG-4 AVC with 700 MB will reach only about a double size Xvid quality from the same source.

        In addition, it is likely that this video has been published initially in the WMV format with the VC-1 codec and keeping it unconverted warrants no loss due to additional decoding/re-encoding processes.

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        • I
          italianbear last edited by

          if i download this video wm… and coinvert in mp4 and repost is ok ?

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          • P
            Popper Global Moderator last edited by

            We have no rule against that and it will count as another format / version, so will be approved.

            The above said, each generation of decoding/re-encoding will degrade from the original quality, because none of the codecs used are lossless. How much loss depends on the quality of the software decoder used and the re-encoding codec and parameters.

            Imagine someone makes a MKV from your .mp4 by decoding/re-encoding (instead of stream extraction, remuxing) and then next someone a AVI …

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            • I
              italianbear last edited by

              why don't put rule on format to use for upload?

              is not better for all have small file in good quality?

              thank

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              • P
                Popper Global Moderator last edited by

                Not all members got software to covert to all formats, but to some or don't know how to use them

                Not all formats are played by all players, software and hardware, computer or consumer electronics devices

                Restricting to only one format will reduce the choice

                Best in quality is always the original release format untouched, what ever it is WMV, MP4, MOV, DVD Video, Blu-ray Disk

                There is always a trade off between quality and size, there are different opinions what is small size and good quality and what is the right balance

                If we would have to ban a format, I am quite sure the first would be rm and rmvb, small files but lousy quality.
                My personal next would be flv, but it may contain MPEG-4 AVC like the MP4 you seems to prefer and therefore can be good quality (but most I watched are lousy, certainly because converted too many times, see above remark about the original release format)

                For share ratio, it does not mater if a file is big or small, what matters is the moment when you enter a swarm, the connectivity of your torrent client programme, the upload rate, the queue settings etc…
                I'll always prefer the original DVD at 8 GB versus a 700 MB MP4 of a video for home use.

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