Frame sampling scheme for video scanning in a video-on-demand system

A to realize the friction speed scanning or a browsing system and method, the user is controlling the film discharge speed, disk or network resource bandwidth and un-re-changeable a. The is a groove; the method with a MPEG video class's scanning operation; the method is solved the limit of MPEG decoder; and minimum system and resource. The groove capable of the present invention comprises a (a) storing method, (b1) sampling method, (b2) layout method and (c) emits method. Matter (b1) and (b2) is section, and can be replaced are. Therefore, the tool ensure for multiple speed is connected with the video the disc array: The device with (a), (b1) and (c); Is with (a); the b2) and (c).