I have the full version of fraps, but I can't record video's while playing Blood.
The only way I can record video's, is if I start the recording, then open blood; but even if I do that, it will only record the sound and leave me with a black screen.

Please help?

Fraps will record either OpenGL or DirectX video. If you are running Blood in DOSBox be sure you output setting is opengl, openglnb, or ddraw, and not surface or overlay. This can be set in your dosboxBlood.conf file:

output=opengl

good luck

Or CTRL-ALT-F5 in DOSBox.

The last time I tried that, my FPS dropped to low single digits, so I can't recommend it. But yes, DOSBox does have video capture built in. If you want to use DOSBox for video capture, I'd recommend recording a demo of what you want to capture using Blood's "spielberg" cheat and then load that demo into Blood using the instructions at the end of Blood's README.TXT file. Once that's done, CTRL-ALT-F5 away. (Be sure to hit ESC to get rid of the start menu.)

Thank you so much. DDraw worked for me. :3

Good to hear!