Most of the video card and the Mobile 9200 chip itself will not help you, but you may be able to use part of the card to get around the controller issue that virtually everyone has been having in
"use laptop screen on a pc??" Unfortunately, since the VPU and the screen are both digital, you likely aren't going to see any RAMDACs anywhere on the chip, which would be right before where you would be able to connect your DVD player's analog video signal. If you can find schematics of the layout of the Mobility Radeon 9200, you might be able to connect a DVI or HDMI connection if your DVD player supports it. Other than that I see no luck simply because the source is analog and the entire video system for the laptop is digital.