What type of media is streamed from video sharing websites like YouTube, Google video, LiveLeak and YouLeak?
FLV is “Flash Video” and SWF is “Shockwave Flash”, Flash Video is the name of a file format used to deliver video over the Internet using. Flash Video content may also be embedded within SWF files. Notable users of the Flash Video format include YouTube, Google Video, Yahoo! Video, Reuters.com, and many other news providers. SWF can be a flash player to play FLV, but FLV can not play SWF, are you clear now?