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Old 2006-01-11, 13:31   Link #1
Jolaloye
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What is DVD-r and DVD+r

What's the difference between DVD-R and DVD+R? Which one should I be using? Does it make a difference anyway. Which format will play on more dvd players?
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Old 2006-01-11, 13:50   Link #2
Circular Logic
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I believe that DVD+R is better than DVD-R. Both will work in pretty much any player, and it doesn't really matter what you use. If you're really interested, try this: http://www.cdfreaks.com/article/113
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Old 2006-01-11, 13:54   Link #3
Hiko Seijuro
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just use a burner that writes all the formats, however when using dvd media do some research into the hardware that you intend to use it with.
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Old 2006-01-11, 18:00   Link #4
RaistlinMajere
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DVD-R is slightly better in compatibility. Neither are technically better. DVD+RW is better than DVD-RW, though, due to lossless linking.
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Old 2006-01-11, 19:52   Link #5
ArchMageZeratuL
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From http://www.sharpened.net/helpcenter/answer.php?129 (linked in http://en.wikipedia.org/wiki/DVD-R):

Quote:
DVD-R (pronounced "DVD dash R") and DVD+R (pronounced "DVD plus R") are nearly identical formats. The discs look the same and are both supported by most DVD-ROM drives and DVD burners. The only difference between the formats is the way they determine the location of the laser beam on the disc. DVD-R discs use tiny marks along the grooves in the discs, called land prepits, to determine the laser position. DVD+R discs do not have land prepits, but instead measure the "wobble frequency" as the laser moves toward the outside of the disc.

The DVD-R format was developed by Pioneer and was released in the second half of 1997. DVD+R was developed by Sony and Philips and was introduced in 2002. Companies that support DVD-R include Pioneer, Toshiba, Hitachi, and Panasonic, while companies that support DVD+R include Sony, Philips, Hewlett-Packard, Ricoh, and Yamaha.

However, most of these companies now develop hybrid DVD drives that support both DVD-R and DVD+R formats. They are known as DVD±R or DVD±RW drives. When looking for media for your DVD drive, make sure it ends in "-R" if you have a DVD-R drive or "+R" if you have a DVD+R drive. If you have a DVD±R drive, you can use either format. DVD-R is still more popular than DVD+R, but since they are both widely supported, it should not matter which format you choose.
Also, from http://en.wikipedia.org/wiki/DVD%2BR:

Quote:
The DVD+R format is divergent from the DVD-R format. Hybrid drives that can handle both, often labeled "DVD±RW", are very popular since there is not yet a single standard for recordable DVDs. There are a number of significant technical differences between the dash and plus formats, and although most consumers would not notice the difference, the plus format is considered by some to be better engineered.
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Old 2006-01-12, 07:59   Link #6
grey_moon
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I remember reading that the term DVD (minus) R was actually put out by the + group to give it a lesser feel to their media. Also people might tell you that +R has better data integrity mechanism, but thats needs to implemented in the HW and normally never is...
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Old 2006-01-12, 19:05   Link #7
NoSanninWa
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Quote:
Originally Posted by grey_moon
I remember reading that the term DVD (minus) R was actually put out by the + group to give it a lesser feel to their media. Also people might tell you that +R has better data integrity mechanism, but thats needs to implemented in the HW and normally never is...
Please read the post immediately above yours. ArchMageZeratuL explained that the DVD-R format came out before the DVD+R format, and that they were released by different groups.
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Old 2006-01-13, 02:14   Link #8
grey_moon
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Quote:
Originally Posted by NoSanninWa
Please read the post immediately above yours. ArchMageZeratuL explained that the DVD-R format came out before the DVD+R format, and that they were released by different groups.
My post was meant to be in addition to ArchMageZeratuL's, since I have a read the links provided (also the one by Circular Logic) and am pretty sure none of them highlight two of the main things you hear people say about why +R is better then -R (and at one point why it was worth it to pay more for the media) which are :
  • "Plus" is better then "minus" re: the name gives it away
  • "Plus" protects your data better because it has a "defect management system" built into it

And I was trying to highlight that the term "Plus" was used allegedly as a marketing strategy by the DVD Alliance to give the impression that their media is better then the Forums and that the term "Minus" was actually put out by them (allegedly).

With the second point, people who tend to big up the + format and talk about how it is better at protecting your data, but don't mention that the extra functionalty is implemented in the hardware and most devices don't actually have that function built in to it.
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Old 2006-01-14, 16:42   Link #9
Jolaloye
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So I guess DVD-r is more compatible with more DVD players or it really doesn't matter?
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Old 2006-01-14, 18:59   Link #10
bayoab
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Quote:
Originally Posted by Jolaloye
So I guess DVD-r is more compatible with more DVD players or it really doesn't matter?
With modern players, they are equally compatible. With older (say 4 years), -R is slightly more compatible. Odds are you will not run into a player where they will not work equally.
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Old 2006-01-15, 00:05   Link #11
Jolaloye
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Thanks a lot guys for all the answers.
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Old 2006-01-17, 10:07   Link #12
Zero1
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The way I understood it was that the "official" format is DVD-R, and DVD+R was developed by a bunch of dudes as a low cost alternative to DVD-R (I believe DVD-R has high licensing or royalty fees compared with +R).

Anyway, a while ago I wrote a bitrate calculator, so I researched the sizes of various media. DVD-R has another 5 or 6MB extra storage space over +R (but I wouldn't use it for the simple reason if you need to copy that disc back to a +R)


Code:
+------------------------+--------+---------+------------+
| Media Type/Description | MB     | KB      | Bytes      |
+------------------------+--------+---------+------------+
| CD 21min/185MB (80mm)	 | 185    | 189000  | 193536000  |
| CD 74min/650MB (120mm) | 650    | 666000  | 681984000  |
| CD 80min/700MB (120mm) | 703    | 720000  | 737280000  |
| CD 90min/790MB (120mm) | 791    | 810000  | 829440000  |
| CD 99min/870MB (120mm) | 870    | 891000  | 912384000  |
| DVD-R/DVD-RW 4.7GB	 | 4488   | 4595776 | 4706074624 | 
| DVD+R/DVD RW 4.7GB	 | 4483   | 4590208 | 4700372992 | 
| DL DVD+R 8.5GB	 | 8152   | 8347650 | 8547993600 |
+------------------------+--------+---------+------------+
Anyone have some specs for 80mm mini DVD? I believe it's about 1.5GB, but I would like something a little more specific.
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Old 2006-01-19, 06:16   Link #13
Gekster
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Quote:
Originally Posted by Jolaloye
What's the difference between DVD-R and DVD+R? Which one should I be using? Does it make a difference anyway. Which format will play on more dvd players?
Find out all answers here:
http://dvdsoftwareguide.com/all-about-dvd-2-guide.html
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Old 2006-01-20, 01:42   Link #14
IRJustman
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Quote:
Originally Posted by Zero1
The way I understood it was that the "official" format is DVD-R, and DVD+R was developed by a bunch of dudes as a low cost alternative to DVD-R (I believe DVD-R has high licensing or royalty fees compared with +R).
If that's the case, why is there no price difference between the two types of blank media nowadays?

--Ian.
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Old 2006-01-21, 20:14   Link #15
Farix
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Quote:
Originally Posted by bayoab
With modern players, they are equally compatible. With older (say 4 years), -R is slightly more compatible. Odds are you will not run into a player where they will not work equally.
I bought a Panasonic multi-disk player last year and it doesn't support +R (nor ±RW for that matter)
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Old 2006-01-21, 21:38   Link #16
Kurz
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Quote:
Originally Posted by Farix
I bought a Panasonic multi-disk player last year and it doesn't support +R (nor ±RW for that matter)
Well if you dont read the box you probably wont know if its combatible or not. You still have to make Informed purchases. Just because we say you can find that quite a few players can play both formats doesnt mean you wont find a player that cant play both.
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Old 2006-01-23, 17:25   Link #17
denss
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Its hard to say which one is better, it's all depends on the DVD media manufacturer.
Generally I prefer a DVD+R from a good manufacturer like Taiyo Yuden.
Also, DVD+R discs can be bit-setted if the DVD writer supports it, so compatibility rises to DVD-R levels.
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Old 2006-01-24, 09:35   Link #18
theanimedude
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When i burned a vob file aka TS_video onto a DVD+R, it works fine on a DVD player. when i use a DVD-R with the same files. it doesnt work on a DVD player. Thats kind of why dvd+rs are more expensive than the DVd-rs.

all summed up in just 3 sentences. just stick with DVD+r's. u'll be fine. i havent had any problems with DVD+rs but with DVd-rs, it's a bizatch.....
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