DVD Media Formats Explained
DVD ( Digital video disk ) or ( Digital
Versatile Disc )
A DVD is a type of compact disc that holds far more information than
CDs. A DVD can hold a minimum of 4.7 GB, enough for a full-length movie, and
up to to 17GB. One of the best features of DVD drives is that they are
backward compatible with CD-ROMs. This means that DVD players can
play CDs as well as DVDs.
DVD+R and DVD+RW
DVD+R is a recordable DVD format
that can only record data once, and then the data becomes permanent on the
disc. The disc can not be recorded onto a second time. The data on a
DVD+RW disc can be erased and recorded over numerous times without
damaging the medium.
We recommend using DVD+R/+RW for the use of
burning DVD movies and watching on your home DVD player. We have found the
DVD+R/RW format to provide the best quality and to be the most compatible
with most DVD players. DVD+R and DVD+RW formats are supported by Philips,
Sony, Hewlett-Packard, Dell, Ricoh, Yamaha and others.
DVD-R, DVD-RW and DVD-RAM
DVD-R discs can only record data once and then the data becomes
permanent on the disc. The disc can not be recorded onto a second time.
There also are two additional standards for DVD-R disks: DVD-RG for
general use, and DVD-RA for authoring, which is used for mastering DVD
video or data and is not typically available to the general public.
DVD-RW is a re-recordable format similar to
DVD+RW. The data on a DVD-RW disc can be erased and recorded over numerous
times without damaging the medium. As stated above, we recommend the +R/RW
formats for the use of burning or copying a DVD movie, DVD-R/RW formats is
very good for most other uses such as the backup of data, images, files,
etc... And the DVD-R/RW formats are compatible with most DVD-ROM's today.
These formats are supported by Panasonic, Toshiba, Apple Computer,
Hitachi, NEC, Pioneer, Samsung and Sharp. These formats are also supported
by the DVD Forum.
DVD-RAM
Digital Video Disc Random Access Memory-discs can be written to 100,000
times. These discs are often encased in plastic for resilience. These
discs are popular for DVD video recorders and other applications requiring
multiple rewrites, edits or backups. DVD-RAM discs can be recorded and
erased repeatedly but are only compatible with devices manufactured by the
companies that support the DVD-RAM format. DVD-RAM discs are typically
housed in cartridges.
DVD-ROM
Digital Video Disc Read Only Memory a DVD player that does not record
data, but only plays movies. DVD-ROM was the first DVD standard to hit the
market and is a read-only format. The video or game content is burned onto
the DVD once and the DVD will run on any DVD-ROM-equipped device.
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