You've tried to record a program that uses video hardware acceleration. To get better performance, these applications bypass the usual methods of writing to the screen, and FlashBack cannot capture them.
There are generally 3 types of program that do this:
- Video players - You may be able to find a setting in the Player to turn off acceleration features, or 'overlays'.
- Video games - Look in the game's video setting for a 'Rendering' option that you can change to 'Software' or 'Use video hardware acceleration' option that can be disabled. Alternatively, we would suggest that you try our game recorder, FBX, which is currently free to download at https://www.flashbackrecorder.com/fbx/.
- Web browsers - There should be a 'Use hardware acceleration' option that you can disable. The location of this option varies between browsers but you can find it for your browser with a quick Google search.