Chapter Report Unit 8 :: Video
Video Formats Video versions of the moving image are recorded on tape or disc, each packaged in forms that vary in size, shape, speed, recording method, and playback mechanism. Videotape, the VHS 1/2 inch format is a preferred medium for commercial distribution of moving images. VHS is also the currently preferred format for amateur and nonstudio production of recorded moving images in education. DVD (digital videodisc), is a medium offering digital storage and playback of full-motion video. Video images can be converted into a digital format. Digital video images can be manipulated, stored, duplicated, and replayed without loss of quality. Videodisc, laserdisc images are sharper than those from videotape. Videodisc images have a horizontal resolution of 350 lines, compared with 240 lines for a videocassette. Also, the audio quality of videodisc is significantly better than that of videotape. Videodiscs images can be "stepped through" frame-by-frame, can be "sca
