Re: DVD+R vs DVD - R

On Mon, 11 Feb 2008 09:54:01 GMT, "HEMI-Powered" <none@xxxxxxx> wrote in
<Xns9A4131DA0B192ReplyScoreID@xxxxxxxxxxxxx>:

John Navas added these comments in the current discussion du
jour ...

<http://en.wikipedia.org/wiki/DVD%2BR>

In addition, DVD+R(W) has a more robust error management
system than DVD-R(W), allowing for more accurate burning to
media independent of the quality of the media. Additional
session linking methods are more accurate with DVD+R(W)
versus DVD-R(W), resulting in fewer damaged or unusable
discs due to buffer under-run and multi-session disks with
fewer PI/PO errors.

John, thanks for the link. I read the entire article but still do
not understand the apparent point.

The point is that DVD+R technology has more robust error management than
DVD-R technology.

<http://www.ceqna.com/tivo-dvrs/989-tivo-3.html>

Improved tracking / speed control / error-management technologies
reduce the number of rejects during manufacture and errors during
playback. Because of this, DVD+R disks are less sensitive to media
quality than DVD-R disks.

<http://www.cdfreaks.com/reviews/Why-DVDRW-is-superior-to-DVD-RW>

Why DVD+R(W) is superior to DVD-R(W)
[read entire article]

<http://www.homefurnish.com/hometheaterelectronics/computers/dvdrvsdvdr.aspx>

The ADIP system of tracking and speed control in a DVD+R recorder is
more accurate than the LPP system used by DVD-R, making it less
susceptible to interference and error at high speeds.

Also, DVD+R has a more accurate and stronger error management system
than DVD-R(W), allowing for more consistent quality. Additional
session linking methods are quite a bit more accurate with DVD+R
versus DVD-R, resulting in fewer ruined disks.

I've not seen Roxio 8 throw any
errors thus I have no direct experience but if the +R format
supports better error reporting, maybe I haven't seen it because
all of my burns have been error free with both -R and +R, at least
as far as Roxio "sees."

You're only looking at immediate hard errors. Sort errors are also
important because they can become hard errors over time and/or on
different equipment.

Do you have an opinion wrt my DVR throwing errors with DVD+R as
well as requiring a format by the DVR even though neither has ever
occurred with my PC?

DVD+R do not require formatting. Are you thinking of DVD+RW? Different
technology. Please be precise in your posts.

Of course, I've long known that on PCs occasionally and certainly
on the 2 different models with similar specs of the Panasonic DVR I
talked about are sensitive to media type because of the color of
the dye layer "confusing" the burning laser.

That's a myth. What matters are reflectivity and media quality.

John, would I be correct in assuming that you have experienced
errors with -R discs that burn OK with +R?

I experience higher quality burned discs with +R than with -R.

I will add one more
comment about my method of insuring or at least trying to insure a
truly error-free burn: no matter what the file type whether it be
JPEG, RAW, MS Office, downloaded app updates, MP3 files, just about
any common graphics or non-graphics file formats, I ALWAYS do a
number of sample reads/opens on the just burned disc even though no
errors have been reported. Now THAT has shown an occasional
problem. e.g., an entire folder full of MS 97 Word .doc files
burned correctly but none could be opened.

Then your burning software is fatally flawed and should be replaced.

Do you have any comments about Joliet vs. UDF? ...

I use UDF.

--
Best regards,
John Navas
Panasonic DMC-FZ8 (and several others)
.

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