The Ultimotion compression techniques used during offline or asymmetric video recording take more time during the compression phase than it takes to decompress the video when the movie is played. By spending more time on compression, these techniques produce higher quality images and can compress the video data more effectively. Ultimotion asymmetric compression techniques produce movies stored using 320 x 240 resolution, 15 frame per second, and can be played from a CD. Movies made with these specifications require 9MB per minute. Reducing either the resolution, frame rate, or quality setting reduces the amount of storage required. Increasing these specifications require faster storage devices (for example, double speed CD-ROM or hard disk) and faster playback systems.