Stealing from Youtube, iFilm, etc.

How do you take a file off one of them embedded movie sites?
Either one of two things will happen when I grab it from cache. It will be present as a file with an odd extension, but will be whole, that won't function properly in any movie viewing tool OR, it will download a movie file that is 40-140 bytes large, and will require me to connect to watch it (streaming.) Is there a way to take all the streamed shit for yourself? And does anyone know what the oddly extended (usually .tmp but not always) files actually are and what codec plays them?

>>6
There's no PHP magic going on. Just hot COPYPASTA action!
1. Take your youtube link: "http://youtube.com/watch?v=vN1D5jJAHTs&WHATEVER "
2. Take everything between "v=" and the next "&": vN1D5jJAHT
3. Take that string, and paste it onto the end of this link "http://youtube.com/get_video?video_id=";:  http://youtube.com/get_video?video_id=vN1D5jJAHTs
4. Paste the new link into your browser, download the file (It'll be get_video with no extention in Firefox), and rename it something smart: get_video > TheBittorrentSong.flv

Easy?