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Help Topics
 Disc Formats
Film Formats
Tape Formats
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Glossary of Multimedia Terms
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Disc Formats
Audio CD: CD format for holding audio data
BD-R: Blu-ray Disc Recordable. An optical disc having 25 GB storage capacity on which data can be written once.
Blu-ray Disc :An optical disc used mainly for storing High Definition Movies and data. It is the same physical size as a CD or DVD, however, the blue laser technology, for which it is named, gives a dual layered Blu-ray disc up to 50 GB of storage capacity.
CD: Compact Disc
CD-DA: Compact Disc - Digital Audio. This format was launched in 1982 and was the product of joint development by Philips and Sony. CD-DA discs conform to the red book standard.
CD+G: Audio CD that contains graphics as well as audio data. The format is usually used for karaoke CDs.
CD-R: Compact Disc Recordable. An optical disc which data/audio can be written to once. The CD-R was developed by Taiyo Yuden.
CD-ROM: Compact Disc Read-Only Memory. An optical disc used to store computer data. CD-ROM is defined by the yellow book standard developed jointly by Philips and Sony in 1983.
CD-ROM/XA: CD-ROM Extended Architecture. These discs contain Mode 2 sectors allowing audio and data to be read at the same time. Photo CD, Video CD and CD-Extra are based on this format.
CD-RW: Compact Disc Re-writable. An optical disc that can be written with data or audio multiple times. Introduced in 1997 by Hewlett Packard, Mitsubishi, Philips, Ricoh and Sony.
Digital Photo CD: A CDR disc containg digital images, usually in jpg format. Images can be downloaded from the disc for
digital photo lab printing and may be viewed on computers or on televisions when played on compatible DVD players.
DVD: Digital Versatile Disc. A DVD can contain audio, video or data.
DVD-5: Single sided, single layer DVD with 4.7 GB of storage
DVD-9: Single sided, dual layer DVD with 8.5 GB of storage
DVD-18: Double sided, dual layer DVD with 17 GB of storage
DVD+R: Digital Versatile Disc Recordable.
DVD+RW: Digital Versatile Disc Re-writeable. Developed in co-operation with Hewlett-Packard, Mitsublishi Chemical, Philips, Ricoh, Sony and Yamaha.
DVD-R: Digital Versatile Disc Recordable. An optical disc capable of having large amounts of data written onto it once.
DVD-RW: Digital Versatile Disc Re-writeable.
DVD-RAM: Re-writeable DVD disc.
DVD-ROM: Digital Versatile Disc Read-Only Memory. Used for storing computer data.
DVD Video: DVD format for storing video data.
HD-DVD Disc: Eclipsed by the Blu-ray disc and now out of production, an optical disc format for storing high definition movies and data
Photo CD: Process whereby images from film are stored onto a CD. Pioneered by Kodak.
Video CD: CD format for holding video data.
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