From Newsgroup: comp.sys.mac.system

In article <3F055C9C.C3593B7C@dslextreme.com>, Keith Whaley <keith_w@dslextreme.com> wrote:

Please be kind enough to explain what +R and +RW are.
I would identify DVD-R and DVD-RW as read only and read/write capable.
So what's +R and +RW?

Also read-only and read/write capable. They're just two completely
different, incompatible technologies. Specific drives can either
handle DVD-R [and often DVD-RW], while others can only handle DVD+R and
DVD+RW. There are some multiformat drives starting to come on the
market that can do either, but they're fairly new.

DVD-R is more compatible with a broader range of consumer DVD players,
which can be a real issue if you want to burn video DVDs. (More home
DVD players can't handle DVD+R discs.) DVD-R media is also a bit
cheaper.

--
Garner R. Miller
Manchester, CT =USA=
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From Newsgroup: comp.sys.mac.system

On Fri, 04 Jul 2003 16:56:20 GMT, "Wayne C. Morris" <wayne.morris@this.is.invalid> wrote:

It's another technology for recordable & rewritable DVD discs. It >accomplishes the same thing as DVD-R and DVD-RW, but works a different
way. DVD-R and DVD+R were invented by different companies/coalitions,
and there isn't a clear winner yet in the marketplace.

I'd say DVD+R/+RW is the clear winner, based on the fact that 97% of
the market is owned by that type, and the leader of the -R/-RW
movement, Pioneer, just switched to a universal (-R/-RW/+R/+RW) format
with the A06.
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From Newsgroup: comp.sys.mac.system

Keith Whaley <keith_w@dslextreme.com> writes:

Please be kind enough to explain what +R and +RW are.
I would identify DVD-R and DVD-RW as read only and read/write capable.
So what's +R and +RW?

When DVD-ROMs came out, different companies started working on
standards for recordable and rewriteable DVDs.

Three different standards emerged.

The first one to have shipping commercial products was DVD-RAM.
2.6GB (later expanded to 4.7), and optionally double-sided. DVD-RAM
has features that make is suitable for use as a giant floppy (similar
to things like Zip, Jaz, and MO.) DVD-RAM's biggest drawback is that
it can't burn a disc that is readable by video-DVD players.

The next one to ship product was DVD-R (soon followed by DVD-RW).
This standard was spearheaded by Pioneer. DVD-R is a write-once
technology (like CD-R). DVD-RW is a write-then-erase technology
(like CD-RW) and is not really suitable for use as a giant floppy.
DVD-R discs can be read by many (but not all) DVD-video players.

Most recently is DVD+R and DVD+RW. These have similar features as
DVD-R/-RW, but they are incompatible. This standard is spearheaded
by Sony. DVD+R discs can be read by many DVD-video players (but not
as many as DVD-R.)

Today, we're finding many manufacturers making multi-standard drives
that support both -R/-RW and +R/+RW, and some are even including
DVD-RAM support as well. I suspect that in the final analysis, most
people will end up with drives that support all three, but we're not
quite there yet.

-- David
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From Newsgroup: comp.sys.mac.system

In article <17nbgvgo3j3iduq9hsn9vngf7hoqljtc16@4ax.com>,
foo <foo@bar.com> wrote:

On Fri, 04 Jul 2003 16:56:20 GMT, "Wayne C. Morris" <wayne.morris@this.is.invalid> wrote:

It's another technology for recordable & rewritable DVD discs. It >accomplishes the same thing as DVD-R and DVD-RW, but works a different >way. DVD-R and DVD+R were invented by different companies/coalitions,
and there isn't a clear winner yet in the marketplace.

I'd say DVD+R/+RW is the clear winner, based on the fact that 97% of
the market is owned by that type, and the leader of the -R/-RW
movement, Pioneer, just switched to a universal (-R/-RW/+R/+RW) format
with the A06.

Yes, several manufacturers did recently introduce (-R/-RW/+R/+RW)
drives including Pioneer (who originated -R/-RW). But they don't seem to
know what format will win either.

Micro$oft also announced they are putting -R/-RW support in Windows.

I am afraid we are facing a VHS/Beta scenario again. I guess only the
market will determine a winner.

DVD-RAM is another incompatible DVD format, but that seems out as DVD
home players don't read that format for the most part.

Who knows.
Morenuf
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From Newsgroup: comp.sys.mac.system

Amazing!
Be sure to provide confusion for the market...

Thanks for the clarification.

keith whaley

Garner Miller wrote:

In article <3F055C9C.C3593B7C@dslextreme.com>, Keith Whaley <keith_w@dslextreme.com> wrote:

Please be kind enough to explain what +R and +RW are.
I would identify DVD-R and DVD-RW as read only and read/write capable.
So what's +R and +RW?

Also read-only and read/write capable. They're just two completely different, incompatible technologies. Specific drives can either
handle DVD-R [and often DVD-RW], while others can only handle DVD+R and DVD+RW. There are some multiformat drives starting to come on the
market that can do either, but they're fairly new.

DVD-R is more compatible with a broader range of consumer DVD players,
which can be a real issue if you want to burn video DVDs. (More home
DVD players can't handle DVD+R discs.) DVD-R media is also a bit
cheaper.

--
Garner R. Miller
Manchester, CT =USA=

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From Newsgroup: comp.sys.mac.system



"Wayne C. Morris" wrote:

In article <3F055C9C.C3593B7C@dslextreme.com>,
Keith Whaley <keith_w@dslextreme.com> wrote:

Please be kind enough to explain what +R and +RW are.
I would identify DVD-R and DVD-RW as read only and read/write capable.

You would be wrong. "R" isn't "read only". The "R" and "RW stand for "Recordable" and "ReWriteable", just like they do for CD burners. A read-only DVD drive or data disc is called "DVD-ROM", and a read-only CD drive or data disc is called "CD-ROM", but the "-ROM" is often dropped
from both.

Thanks for the correction. Obviously I have been thinking of them
incorrectly. Even tho' I use them properly! But, I needed the
elaboration and pointing out my improper designations.

Keith Whaley

So what's +R and +RW?

It's another technology for recordable & rewritable DVD discs. It accomplishes the same thing as DVD-R and DVD-RW, but works a different
way. DVD-R and DVD+R were invented by different companies/coalitions,
and there isn't a clear winner yet in the marketplace.

A DVD-R blank cannot be used in a DVD+R drive, and a DVD+R blank cannot
be used in a DVD-R drive. (There are some hybrid drives that support
both media.)

DVD burners of both types can also burn CDs (CD-R and CD-RW).

Some DVD-ROM drives can burn CDs, but not DVDs.

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From Newsgroup: comp.sys.mac.system

In article <280620031913049291%milton@SAPMMUSTDIEoutcastsoft.com.invalid>, Milton Aupperle <milton@SAPMMUSTDIEoutcastsoft.com.invalid> wrote:

In article <m28yrmrs0i.fsf@qqqq.invalid>, David C. <shamino@techie.com> >wrote:

"Gordon B. Alley" <galley@texas.net> writes:

---------------SNIPPED----------------

Also, I've seen reports of a way to trick iDVD into burning a DVD-RW
disc. IIRC, you insert a DVD-R when it asks for one, and then after
it has seen the DVD-R and starts preparing to record, you eject the
DVD-R and replace it with a DVD-RW.

I've heard about this.

This is an explicit hack around a deliberate "feature" of iDVD. The
program itself is theoretically capable of burning to anything, but
Apple doesn't want to let you use it in anything other than a
SuperDrive, which (officially, anyway) isn't supposed to support
DVD-RW media.

FWIW, I'm told that DVD Studio Pro will burn to DVD-RW, DVD+R and
DVD+RW and will support non-Apple drives. Of course, that would be
expected for a $1000 product.

-- David

Just for interest sakes, the iDVD "hack" (i.e.e eject DVd-R and then
hit the eject butotn and replace DVD with a DVD-RW) to burn DVD's with
DVD-RW does work fine. I've done it several times now with iDVD 2.0
under OSX 10.2.x and the DVD-RW disks play fine - both on my Macs and
my DVD Players too.

Also you can simply mount a blank DVD-RW on the Desktop with the Finder, then hit Burn in iDVD, it'll burn the disc just fine. Sadly my JVC DVD player only reads
DVD-R/+R and not DVD-RW.

-Jason

--
Jason Perez | "Frodo Lives!" "Gig 'em!"
Austin, TX
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