Does anyone know is there a way to force vimeo.com (and other similar video hosting) to not reencode the video i upload? At vimeo.com i red "General compression guidelines for Vimeo" briefly what they want is: aac audio codec, 44110 sample rate, h264 video codec and 25p. I did all this and it turns out now that (apart from breathtaking upload speed of 70kB/s!!!) it takes ages to convert it again on their site) Why to convert it again??? I wish i could understand how that black box works and how they check the video i upload if it satisfies to their conditions.

best you could do is optimizing your video for youtube i encode my videos in x264, 1999kps, 2pass & wave for the audio. wave because like this the encoder focus on the video part as the audio is uncompressed it's not a big of a deal to encode. also the frame size on youtube the max is 960x720 (4/3) and 1280x720(16/9) thus i encode my videos in one these formats. Try to avoid any other size above/below these. Now for vimeo you'd have to do your tests, what's the max frame size/ max bitrate possible.

If you want a service that doesn't re-encode, try Zoome or Nico Nico Douga (premium users only).

I am definitely a newbie in the world of video, but that's so strange: why all i can do is only optimizing??? They could simply write a script that checks my video to satisfy a list of conditions and "spits it out" being untouched if it does satisfies them. Zoome and Nico Nico Douga?.. These sites unfortunately do not have english interface.