Ho everyone! I've found little documentation that'll help me out on that there interweb, so I hope someone here is in the know! I'm working on a Youtube type system for a local school, so far everything's going fine, but I want it to automatically convert uploaded video files of various types to flv. Currently I have it set to only allow upload of flv files. FFMPEG, a command line video conversion tool seems to be the solution, unless someone can tell me of a better one. documentation is here: http://ffmpeg.mplayerhq.hu/ SVNs are here: http://svn.mplayerhq.hu/ffmpeg/trunk/ Windows compiled downloads here : http://ffdshow.faireal.net/mirror/ffmpeg/ (this is what I'm using) The propram itself works very well, but trying to get it to work on an external server is something quite new to me. Here are a couple of brief tutorials I've looked at: http://www.onlamp.com/pub/a/php/2007/05/24/creating-mytube-with-flex-and-php.html?page=2 http://vexxhost.com/blog/2007/05/20/how-to-convertencode-files-to-flv-using-ffmpeg-php/ They're brief in that they just provide and explain (to some extent) the code needed but don't talk about files that should be used. I get no errors and no results (converted files) so I struggle to figure out where I'm going wrong. That is if it's even possible to do since I'm developing on my University's web space; would it be likely that the server restricts executing programs. I believe that the servers are Linux so would I need a different version to the Windows compiled one? I'm not sure if by Windows compiled it means compiled under Windows or specifically FOR Windows. Well thanks for reading! Hope someone can help!