Playback on both primary and secondary display

[mate]

I'm replacing an old computer (with a slightly less old one) used with a projector. Using WinDVD 4 we were playing videos that showed fullscreen on the secondary (S-video) display at the same time as it was shown windowed on the primary (VGA) where the controls are.

On the new computer I am unable to achieve this. Assuming it was some hardware feature?
Is it possible to achieve the same behaviour with software? Such as configuring ffdshow or DirectX?

[Baldrick]

It's because of so called overlay or hardware acceleration. You might be able to enable cinema mode in the advanced display settings and get it to work automatically on both your displays(I could do that for my ATI card).

Or else can you disable overlay, in windows media player can you set it under performance. Or use VLC and you can disable it under the options. Or google for disable overlay for more solutions.

[jagabo]

Clone mode displays the same thing on both outputs. Cinema or Theater mode displays the content of a media player (whether windowed or full screen) full screen on the secondary display. These are features of the graphics card (hardware and drivers), not the media player software.

[mate]

I forgot to mention, the replacement computer doesn't even have an AGP port, so I added a USB to DVI adapter. Primary and secondary display are therefore physically separate interfaces with different drivers. That is why I assume I need a software solution.

I don't see how disabling overlay would help in this situation?