Originally Posted by harvey

it's called a Video Player. A video player is a kind of media player for playing back digital video data from media such as optical discs (for example, DVD, VCD), as well as from files of appropriate formats such as MPEG, AVI, RealVideo, and QuickTime.

In addition to VCR-like functions such as playing, pausing, stopping, rewinding, and forwarding, some common functions include zooming/full screen, audio channel selection, subtitle selection, and frame capturing.

Many of the video players also support simple playback of digital audio and 3D playback of 2D video.

Good luck