DVD-r or DVD + R

D

dd1313

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Hi Guys

What is the main difference for us in south africa.

Does it matter ?

THanks
DD
 
I've always wondered what that meant too. I'd rep you if I could Chilli :)
 
ponder said:
Lol, you're joking, right?
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:D :D

DVD-R/RW - These “minus“ discs can only be written to in one layer on the discs surface = Better for Video/movies & readable by most older players

DVD+R/RW - These discs can be written to in multiple layers, giving them slightly better and more disc storage than the “minus“ format. = Better for Data backups (most older players will NOT read these discs if used for video/movies)
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so .....

DvD-R: Write once, better for Video as widely accepted by home DvD players.

DvD+R: Write once BUT data can be added later (not RW, but still accessible). Better for data as most Computer DvD players can read it and you can fill half the disk(multi-session), then add a quarter, and then complete it a year later (as an example).
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Last time I checked all CDs, DVDs etc. were read from the inside out. There are a bunch of small differences between -R & +R:
DVD-R

* The approval of DVD-R is done by the standard group DVD Forum founded by Sony, Mitsubishi, Time Warner and Hitachi.
* It is more compatible with computer burned DVD format.
* These disks are inexpensive.
* It gives a vague value of the time required for a recording.
* A DVD-R SL (single layer) disk can hold data up to 4.384 GiB.
* A DVD-R DL (DL) Double layered disk has a capacity of 7.957 GiB.
* A DVD-R SL has 2,298,496 data sectors.
* A DVD-R DL has 4,171,712 data sectors.


DVD+R

* DVD+R is supported by DVD+RW Alliance, which is backed by Philips, Yamaha, Sony, JP and Dell.
* DVD+R is more compatible with DVD players and when it comes to the cost, these disks are costly as compared to DVD-R.
* It displays the exact time required for the recording.
* DVD+R SL has the capacity 4.378 GiB.
* The DVD+R DL can hold data up to 7.961 GiB.
* There are 2,298,496 data sectors in a single layer DVD+R disk.
* There are 4,173,824 data sectors in a double layer DVD+R disk.
* Multiple layers of the same disk are allowed in a DVD+R.
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Link

From Wikipedia:
DVD-R
DVD+R
 
AFAIK and without doing the google thing, the different formats are due to the manufacturers (Philips, Sony, etc) forming 2 different groups and each group developed their own format. DVD- was the first format and was followed by the DVD+ format.

Initially the two did not recognise and acknowledge each other but eventually they saw the light and made their products compatible and interchangeable.

This is why some of the very old DVD players will not recognise both formats, only either + or - !!


EDIT: sees post above explains via wiki... won't edit my post.
 
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ponder said:
As far as I know they both have support for Dual Layer, well in theory anyway.

I would not really trust those descriptions either.
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Agree with you. See the wiki link above for DVD capacities...

DVD capacity

Disk Type - Data sectors (2,048 B each) - Capacity bytes - GB

DVD-R (SL) - 2,298,496 - 4,707,319,808 - 4.7
DVD+R (SL) - 2,295,104 - 4,700,372,992 - 4.7
DVD-R DL - 4,171,712 - 8,543,666,176 - 8.5
DVD+R DL - 4,173,824 - 8,547,991,552 - 8.5

SL / DL – Single/Dual layer
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ponder said:
As far as I know they both have support for Dual Layer, well in theory anyway.

I would not really trust those descriptions either.
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ponder said:
Never ever trust a what a pc support person tells you because they are only slightly more informed than the general populous. In the land of the blind... :D
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Read the post again .... was NOT referring to single/dual layer, but to fact a DVD-R is pre-formatted as one volume & is designed for single session(one layer) storage only .....
sure you can do/try a multi-session with it, but it's not designed for it ... go read up & you'll find many having problems with the last session when trying to use a DVD-R as multi-layer (writing to disc more than once)

:erm: :wtf:

From Wiki :
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.
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COMPUTEK said:
Read the post again .... was NOT referring to ......
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Was not arguing, just a general statement about people in the computer field telling people stuff which is wrong a lot of times, not directed at you either ;)
 
ponder said:
Was not arguing, just a general statement about people in the computer field telling people stuff which is wrong a lot of times, not directed at you either ;)
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Me? :twisted: :p



/kidding!
 
ChilliGirl said:
the +/- indicates the direction data is written on a disc. From inside out or outside in. This has no impact for us here in SA.

Perhaps you are also thinking about how DVDs get zoned. We cant watch a USA disc due to zoning diff. unless you have a USA DVD player or you are able to change the zoning on your DVD player.

The +/-: most DVD writers can manage both. A very limited few can write only to + & a few to - only.
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That's easy to remember.
biltong said:
I've always wondered what that meant too. I'd rep you if I could Chilli :)
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That's what I thought as well.
biltong said:
/facepalm for me. :c
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Then I also felt like this!


Lol, this is one of the funniest things I have seen!
 
...seems people are faaaaar to serious around here...

Laugh people - it was a joke
 
ChilliGirl said:
...seems people are faaaaar to serious around here...

Laugh people - it was a joke
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dr-evil.JPG
 
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