http://www.quickonlinetips.com/archives/20…s-media-player/
OR
ripped from a post at http://www.techspot.com/vb/topic33807.html
Go to http://www.fraps.com and use FRAPS. With Fraps running, just hit F10 to have screenshots captured to the C:\Fraps folder.
Windows Media Player, WinDVD and other such programs use “Overlay” video, which isn’t a normal part of the windows display. In order to capture the “Overlay” video, you need a special capture tool- which FRAPS indeed does.
Turning off hardware acceleration will also work since this disables the Overlay and uses standard windows GUI/2D display routines. This also slows the video down to a crawl and wont allow any of the deinterlacing or image enhancement features your videocard normally has in its Overlay mode.