Media Format

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DVD		Topic	DVD (also known as "Digital Versatile Disc" or "Digital Video Disc" - see Etymology) is a popular optical disc storage media format. Its main uses are video and data storage. Most DVDs are of the same dimensions as compact discs (CD) but store more than six times as much data. Variations of the term DVD often describe the way data is stored on the discs: DVD-ROM has data which can only be read and not written, DVD-R and DVD+R can be written once and then function as a DVD-ROM, and DVD-RAM,...
		Media source
		Media Format
		Film cut type
		Film distribution medium
Laserdisc		Topic	The LaserDisc or Laserdisc (LD) was the first commercial optical disc storage medium. The laserdisc has great storage capacity, but limited backup-medium capacity; primarily, this technology was an expensive, high quality home video format. The laserdisc was commercialised under these brand names: Reflective Optical Videodisc, Laser Videodisc, Disco-Vision, DiscoVision, and MCA DiscoVision. Despite being technologically superior to VHS, the laserdisc was not as popular or as successful as it...
		Media Format
		Film distribution medium
Videotape		Topic	Videotape is a means of recording images and sound onto magnetic tape as opposed to movie film. In most cases, a helical scan video head rotates against the moving tape to record the data in two dimensions, because video signals have a very high bandwidth, and static heads would require extremely high tape speeds. Video tape is used in both video tape recorders (VTRs or, more common, video cassette recorders (VCR)) and video camera. Tape is a linear method of storing information, and since...
		Media source
		Media Format