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Unfortunately, unlike recordable CD drives, there are many
different competing standards for creating DVD discs. For
example, DVD-R, DVD-RW, DVD+R, DVD+RW, DVD+R DL (DVD+R9), and
DVD-RAM are all different competing standards. Below is a brief
explanation of each of these standards and related links
to each of these standards.
DVD-R
Short for Digital Versatile Disc-Recordable,
DVD-R is similar to the idea behind CD-R, where the drive is
capable or recording once to a disc and then read many times
after it has been created. DVD-R is an approved standard by DVD
Forum and the drives are capable of recording to DVD-R
discs, also known as DVD-5 and DVD-10
discs.
Note: DVD-R discs are compatible with most stand
alone DVD players and computer DVD-ROM drives.
DVD-RW (DVD-R/W)
Short for Digital Versatile Disc-Read/Write,
DVD-RW is an approved standard by DVD
Forum and, much like CD-RW, is a technology that enables a
user to read and write to a DVD-RW or DVD-R disc several
times. DVD-RW drives are capable of recording to DVD-R
and DVD-RW discs, also known as DVD-5
and DVD-10 discs.
Note: DVD-RW discs are compatible with most
stand-alone DVD players and computer DVD-ROM drives.
DVD+R
Short for Digital Versatile Disc-Recordable,
DVD+R is an approved standard by the DVD+RW
Alliance and, much like CD-R and DVD-R, is a technology that
enables a user to read and write to a DVD+RW or DVD+R disc
several times. DVD+RW drives are capable of recording DVD+R
discs, also known as DVD-5 and DVD-10
discs.
Note: DVD+R discs are compatible with most
stand-alone DVD players and computer DVD-ROM drives.
DVD+RW
Short for Digital Versatile Disc-Read/Write,
DVD+R is an approved standard by the DVD+RW
Alliance and, much like CD-RW and DVD-RW, is a technology
that enables a user to read and write to a DVD+RW or DVD+R
disc several times. DVD+RW drives are capable of recording DVD+R
and DVD+RW discs, also known as DVD-5
and DVD-10 discs.
Note: DVD+RW discs are compatible with most
stand-alone DVD players and computer DVD-ROM drives.
DVD+R DL (DVD+R9)
Short for Digital Versatile Disc-Recordable
Dual Layer, DVD+R DL is an approved standard by the DVD+RW
Alliance and almost doubles the capacity of a DVD when
compared with the DVD+R or DVD+RW discs, also known as DVD-9
and DVD-18 discs.
Note: DVD+R DL discs are compatible with most
stand-alone DVD players and computer DVD-ROM drives.
DVD-RAM
Short for Digital Versatile Disc-Random Access Memory,
DVD-RAM drives are an approved standard by the DVD+RW
Alliance and are similar to CD-RW in that they enable
users to read and write to a disc several times.
Note: Unlike competing standards of DVD recordable
discs, DVD-RAM discs cannot be read in the majority of
stand-alone DVD players and computer DVD-ROM drives.
Also see: CD definitions, DVD,
DVD Forum, DVD+RW
Alliance, Recordable DVD discs,
Storage
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