DVD Recorders Introduction
DVD players are
quickly replacing VCRs as the preferred source for
playing movies at home. Now, with home DVD recorders, you may find yourself using
your VCR even less. Just as VCRs play pre-recorded
movies and record on blank tapes, DVD recorders play DVD
movies and record on blank DVD discs.
Imagine
being able to record TV shows and home movies and then
watch them on a DVD player, or on your computer's
DVD-ROM drive. DVD recorders provide DVD's outstanding
picture and sound quality, as well as tape-free
convenience. Like a VCR, a DVD recorder has a built-in
TV tuner, and a clock/timer for unattended recording.
Note: You will not be able to make recordings of
copy-protected DVDs.
Advantages of recording to a
disc
The advantages
of recording video to DVD versus tape are similar to the
advantages of recording music to CD instead of cassette.
You don't have to fast-forward or rewind to find an
unused section of tape, or worry about unintentionally
recording over another segment. The DVD recorder keeps
track of the size and location of any available space on
the disc. To start recording, you simply push the Record
button! Arranging and editing video segments with a DVD
recorder is as easy as creating a mix CD on a CD
recorder.
Because optical discs are a much more
durable and robust medium than magnetic tapes, DVD
recorders are ideal for archiving programs recorded on
other media, or for transferring precious camcorder
footage. Disc-based recording eliminates worries about
old or worn tapes getting stuck in your VCR or degrading
over time. And although the technology in DVD recorders
is very advanced, they actually have many fewer moving
parts than a VCR, for better long-term reliability.
DVD recorders provide anywhere from one to six
hours of recording time on a regular 4.7GB single-sided
blank DVD. There are differences depending on which
recordable DVD format you use, but you can generally
expect to record 1-2 hours of studio-quality video, or
up to 6 hours at VHS quality. The highest-quality mode
yields recordings with picture and sound quality that
are virtually indistinguishable from the original. The
video recording format is MPEG2,
while audio is recorded in 2-channel Dolby? Digital 2.0.
DVD Recordable Discs Overview CD-Recordable discs
(CD-R) were introduced in 1988 and CD-RW (the re-writable version) was
introduced about 15 years after the first read-only CD was launched.
Both write-once and re-writable DVD discs have been developed and
all are now available. There are several different formats all with a
capacity of 4.7GB per side:
- DVD-R
discs are write-once discs with a capacity of 4.7GB per side. Two
versions have been defined: DVD-R for Authoring and DVD-R for General
use. Note that copy protected content cannot be written to DVD-R
discs.
- DVD-RAM
discs are re-writable discs with a capacity of 4.7GB per side for
computer data storage and archive applications, although this format
is also used in some DVD video recorders.
- DVD-RW
discs are re-writable discs with a capacity of 4.7GB per side for
consumer applications such as video recording.
- DVD+RW
and DVD+R
discs are similar to the corresponding DVD-RW and DVD-R for General
formats.
Both recorders and discs for these formats are now available and
include PC drives, video recorders and camcorders. Compatibility is an
issue as not all formats will play on existing DVD players and DVD-ROM
drives.
Three
competing recordable-DVD camps Electronics and computer manufacturers
couldn't agree on a single standard for recordable DVD,
so they've split into three camps.
DVD-R/RW is
backed by Pioneer and supported on the computer side by
Apple;
DVD-RAM is backed by Panasonic with
support by Toshiba;
DVD+R/RW is backed by Sony
and Philips, with support from Hewlett-Packard.
Another way to group these recordable formats is
"write-once" (non-erasable) versus rewriteable
(erasable). Write-once formats include DVD-R and DVD+R;
rewriteable formats include DVD-RW, DVD-RAM, and DVD+RW.
DVD-RW and DVD+RW discs can be erased and re-recorded
about 1,000 times, while DVD-RAM discs can be
re-recorded up to 100,000 times! When purchasing blank
discs, be sure you're getting a type that's compatible
with your recorder. For example, there are two types of
DVD-R discs: DVD-R(G-general), and DVD-R(A-authoring).
Consumer recorders use DVD-R(G) discs.
With so
many formats and compatibility issues, and only a
handful of DVD recorder models available to consumers,
it's difficult to say with total certainty which discs
will play in which recorders (or players!).
There are some technical differences among these
formats, but the most important distinction for
consumers is compatibility with existing DVD players
(and computer DVD-ROM drives).
DVD-R is the format
that's most compatible with current players and drives.
DVD-RAM is the least compatible ? it will only play on
DVD players specifically designed to handle it. However,
DVD-RAM does offer some unique capabilities, such as
simultaneous record and playback, which provides some of
the same conveniences as a TiVo hard disk recorder.
Making the
right connections
If
you're shopping for a DVD recorder, make sure you get
one with the necessary video and audio connections for
optimum performance with your other A/V gear. Starting
with video, most DVD recorders include composite and
S-video jacks, and some have component video inputs,
too. For convenient dubbing from a camcorder, look for a
DVD recorder with a set of front-panel inputs. To make
the cleanest possible transfers from your digital
camcorder tapes, a few DVD recorders include an i.LINK
digital A/V jack.
As far as audio connections,
if you plan to use a DVD recorder as your primary DVD
player, make sure you get one with a digital audio
output, so you can send Dolby Digital signals to your
A/V receiver.
See DVD Recorders, PVR, HDTV
See How to connect your DVD player
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