DVDs containing other types of information may be referred to as DVD data discs. Rewritable DVDs ( DVD-RW, DVD+RW, and DVD-RAM) can be recorded and erased many times.ĭVDs are used in DVD-Video consumer digital video format and in DVD-Audio consumer digital audio format, as well as for authoring DVD discs written in a special AVCHD format to hold high definition material (often in conjunction with AVCHD format camcorders). Blank recordable DVD discs ( DVD-R and DVD+R) can be recorded once using a DVD recorder and then function as a DVD-ROM. Such discs are a form of DVD-ROM because data can only be read and not written or erased. Prerecorded DVDs are mass-produced using molding machines that physically stamp data onto the DVD. However, as with CDs, the information and data storage will begin to degrade over time with most standard DVDs lasting up to 30 years depending the type of environment they are stored and whether they are full with data. DVDs offer significantly higher storage capacity than compact discs while having the same dimensions.
Allowing up to 17.08 GB of storage, the medium can store any kind of digital data and was widely used for software and other computer files as well as video programs watched using DVD players. It was invented and developed in 1995 and released on November 1, 1996, in Japan. The DVD (common abbreviation for Digital Video Disc or Digital Versatile Disc) is a digital optical disc data storage format.
HD DVD: HD DVD-R, HD DVD-RW, HD DVD-RAM.Blu-ray Disc ( BD): BD-R & BD-RE, Blu-ray 3D, Mini Blu-ray Disc.DVD: DVD-R, DVD+R, DVD-R DL, DVD+R DL, DVD-R DS, DVD+R DS, DVD-RW, DVD+RW, DVD-RAM, DVD-D, DVD-A, DVD-Video, HVD, EcoDisc, MiniDVD.Compact disc ( CD): CD-DA, CD-ROM, CD-R, CD-RW, 5.1 Music Disc, Super Audio CD ( SACD), Photo CD, CD Video ( CDV), Video CD ( VCD), Super Video CD ( SVCD), CD+G, CD-Text, CD-ROM XA, CD-i, MIL-CD, Mini CD.DVD+RW, DVD-RAM (Fixed-track writable media).Up to four layers are possible in a standard form DVD.Ħ50 nm laser with a focused beam using more power than for reading, 10.5 Mbit/s (1×)ĭVD Forum's DVD Books and DVD+RW Alliance specifications DVD-ROM and DVD-R(W) use one encoding, DVD-RAM and DVD+R(W) uses anotherĤ.7 GB (single-sided, single-layer – common)
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