What's your experience with .mkv files here on the tracker?
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Hi all,
I am sometimes a little frustrated when I try to watch downloaded mkv files. They often don't play properly. I've noticed that they pop up more often now on the tracker but I wonder why people encode in mkv because I don't see benefits in doing so. The picture quality is not necessarily better than a good avi, the file size is not smaller… Sure, they have their purpose... for HD movies with surround sound. But for porn?
My favorite formats for porn are mp4 and avi. mp4 offers great quality in compact size.
What are your experiences? -
I agree. MP4 and AVI are both sufficient formats for porn videos. I have nothing against MKV though. However, my veins pop out whenever I see RealMedia video files. It's beyond my comprehension why anyone would encode video in this terrible format. I also not keen on WMV files since I use a Mac.
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I've long advocated banning RM file since they are ALWAYS crap quality. Sadly, too many people complained so we still have that crap video format.
I don't care for WMV files because I don't think you get quality for the size of the file. The quality seems to be half that of an AVI of the same size.
We're starting to get HD porn, so I don't see why we shouldn't have MKV files for them. I only download MKV files for movies now, but only on titles I know are Blu-ray or HD. MKV does seem a bit of a waste for DVDs.
My rule of thumb for AVI porn is 1gb for every hour of video. 1.5 hour video is 1.5gb (ish) of AVI. That's for a DVD. Blu-ray and HD should be 1.5gb per hour of video.
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avi, mp4 and mkv are just containers!
the container chosen has no effect on the quality
xvid encoded video can be placed in any of the 3 containers
the final size and quality will be essentially the same
how the video is encoded/compressed determines the quality
avi is the oldest container - it is VERY old
it has many limitations
hence, the need for the newer containers
mkv is the least restrictive of the containers
one can place just about anything in a mkv container
(yes, even RealMedia compression can be placed in mkv, but not in mp4)
that's why it is popular -
Agree, the actual quality is more to do with the codecs used, the software used to do the conversion etc.. some people simply let the software do everything using wizards etc which is usually setup to encode quickly instead of slowly but best quality etc.
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I've long advocated banning RM file since they are ALWAYS crap quality. Sadly, too many people complained so we still have that crap video format.
While we're on that topic, can we add the same for Flash Video files (.flv)… They can be just as annoying and poor quality.
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There is a program called Replay Media Catcher [available in the appz here] that creates horrible mkv's. Some programs won't convert them and some won't play them. If you do get one to play you can just watch it fall apart to chaotic pixellation. This is the only program that I have trouble regarding MKV's. I wish people who use it would play their output before posting.
A
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I can recommend Handbrake to create MKV … (does as well MP4).
Of course besides the pre-defined profiles, it is always good to have some understanding of what is done ...
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My only question here is what is the advantage of MKV files over a more traditional format such as AVI or MP4?
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What is the advantage of MKV files over a more traditional format such as AVI…?
When you say "advantages" it is difficult to answer in a specific way as to what those advantages are, because this word is subjective ― what one person considers as an advantage may not be so for another, and vice versa. The only clear way to explain the differences is to look at the developments of both formats and to draw your own conclusions.
The avi container introduced by Microsoft in the early 90s was designed as a "flexible" audio/video container format for the compression needs of those days. Avi is only one part of a framework called 'Video For Windows' (VfW) offering programmers not only a container but also a complete set of API (application programming interface) commands to be able to program their own video and audio codecs using either the VfW or an ASM (asynchronous communication mechanism). Unfortunately this VfW framework cannot support many of the more advanced features that modern audio and video compression formats offer, such as variable bitrate audio encoding (VBR), or variable framerate video encoding (VFR). Although avi was extended with an additional standard called 'Open DML AVI' in the mid/late 90s, overcoming most of its limitations like the 2 GB file size limit, there is still no way for avi to support modern compression formats.
For an organism to survive in the wild it must be able to adapt. The same is true for computer programs. They must be flexible enough, or they will be replaced by ones that are more flexible. Adaptability is the key. Mkv overcomes avi's limitations and supports all known audio and video compression formats by design. Since this adds more functionality to the container format without interrupting compatibility with older softwares and files, mkv is a much more "flexible" framework than avi, capable of coping with any future standards ― until it too, will be replaced by something even more flexible, and so on, and so forth ― for such is the logic of evolution. This difference is the only reason for its existence.
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The MKV container can contain many things: multiple audio streams (diffrent languages, or AC3, DTS HD MA, or or or ), subtitles in different formats, information about chapters, covers …
