Dxtory is a movie capture tool only for DirextX/OpenGL application. In order to acquire data from Surface Memory directly, It operates very much at high speed. Arbitrary cropping and free scaling are supported by hardware. The codec of Dxtory can record original pixel data as it is. A quality can be pursued to a limit with video source without degradation. Moreover, since the third party VFW codec is also supported, the user can choose a favorite solution.