DVD-R AND DVD+R

WHAT THE HELL IS THE DIFFERENCE BETWEEN DVD-R & DVD+R? PLEASE SOMEBODY FILL ME IN.... D LUCHOVICH

 

DVD-R and DVD-RW
DVD-R/W was the first DVD recording format released that was compatible with standalone DVD Players.
DVD-R is a none rewriteable format and it is compatible with about 85% of all DVD Players and DVD-ROMs.
DVD-RW is a rewriteable format and it is compatible with about 65% of all DVD Players and DVD-ROMs.
DVD-R/W supports single side 4.7 GB* DVDs(called DVD-5) and double side 9.4 GB* DVDs(called DVD-10).
These formats are supported by DVDForum.

DVD+R and DVD+RW
DVD+R/W has some better features than DVD-R/W such as lossless linking and both CAV and CLV writing.
DVD+R is a none rewritable format and it is compatible with about 85% of all DVD Players and DVD-ROMs.
DVD+RW is a rewritable format and is compatible with about 70% of all DVD Players and DVD-ROMs.
DVD+R/W supports single side 4.7 GB* DVDs(called DVD-5) and double side 9.4 GB* DVDs(called DVD-10).
These formats are supported by the DVD+RW Alliance.

 

But, why there is Minus and Plus in the first place? Just interested.
Plus doesn't seem to take huge advantage on minus. or there is something I missed?

Thanks

 

Which will go more common in the future?
Or two kinds just going to be developed in their own ways?

 

I wonder is there any new techology developing to be better DVD.

 

So i take it for purposes of coping movie dvd's to dvd... -R is just as good as +R format. (assuming the stand-along compatiablity issue is the same for both types for a particular user's system?) yes?

 

another question...

Is the format -R +R the same format with the difference being the media characteristics hince the need to have different media sold.

I was thinking that the format, if it could be read by a stand alone player, it would "look" the same to it and it doesn't matter if its -R or +R assuming the laser heads can pick up the signal on the disk.

is that how it works?

Thanks,
pcexpress

 

thanks.. when you say "mechanics of the disc" are a little different, is the disk heavier or spin different, is that what is meant by that? I know about CLV & CAV difference support between the formats.. or is that the difference you mean?

BTW: If you copy a disk to disk does the loosless linking technology still come into play for this? Would that make the +R format able to detect errors more so then the -R format? (or would +R just be able to stop errros from occuring in the first place?)

thanks,
-lee

 

Actually, not all dvd roms can read all the formats. My TOSHIBA second generation won't do rewrites. It just chokes on them. Now possiby all third generation on up can handle them fine.

 

xgasman is dead on right...All dvd-roms do NOT play RW format, my compaq dvd rom gags on dvd-rws.

 

I guess that is the big assumption... "if the laser heads can read the data..." then the data is structured the same... it is not a compatiablity issue... more of a physical one between the laser heads and the media as opposed to the a structural difference like say the difference between NTFS and FAT in disk structure analogy... yes?

if so it looks like everyone is saying the same thing more or less. yes?

The bigger point I suppose I was trying to test is that if and its a IF, but if my stand alone dvd-drive can read -R and +R media... why use +R media when watching dvd standard movies (backup copies of course) ? If I can use -R media just as well as +R, why not just go with the -R media which is cheaper... all things being equal?

I do see a difference for using +R over -R in certain applications which would use CAV or CLV but that's not an issue on movies already created, yes? I mean, once it is burnt, it is burnt doesn't matter what it did to get there, yes?

 

Thanks for the follow up, but you posted so fast you may not have seen the additional text I edited in the message..

check it out and let me know if I am off base.

Thanks!