saw a great little article a while back here which covered the topic in pretty good detail.

For best results, add code to log keystrokes and do a replay and then run your replay taking a screenshot in-game after every frame. It's more work but it means that you don't have to do the image capture and compression in real time.

Guess I should have mentioned, this is for recording 3d (opengl) stuff using Ardor3D.

Endolf

Buy???, pfft, that's just crazy talk, remember, some of us are yet to make our millions ;p

Endolf

is this for fullscreen openGL?

also if you really want to you can take screen shots of your own by copying the back buffer into images. then use virtual dub to record it into a video.

Also while were on the topic, is it possible to get LWJGL to access the image buffer while another applications is rendering with OpenGL?

Recordmydesktop works fairly well.