what is a dvd +R?

Answer 1

A dvd format that you can only write to once. I can be read by any dvd player that handles the +R format. There is also a dvd -R which is bascially the same thing just in a slightly different format. Most new dvd players today can read either format. There is also +RW and -RW which is are disc that can be written to multiple times.

The key is just to ensure that if you be a dvd-recorder or dvd-writer that the format you write is compatiable with the player or PC you are going to be reading it from.

Answer 2

As I understand it DVD+R is patterned after the computer DVD process while DVD-R is patterened after set top DVD players.

Older set top DVD players may not be able to read DVD+R.

Almost every unit made today accomodates both.

DVD-R requires track formatting (making "land pits"), as a general rule and that you "close" the disk (addressing the "land pits") after burning so that it can be read in any DVD player. The format dates back to 1997, but by and large only millenium era set top players read the format with relaiblity.

DVD+R uses on the fly recording and indexing and as such any player that can read a DVD+R should be able to read the disk without your doing anything special other than burning tracks. This aspect, however, is why older players can't read the disks. DVD+R also offer double layer recording for extra storage capacity, but again older player will definately not read those disks.

RW disks in both formats are iffy with a lot of readers.

All R formats (CD and DVD) work by melting a chemical in the layer to form the eqivalent of pits (actual burned pits are used in commercial disks) which alter the reflectivity and then represent data.

ALL RW formats (CD and DVD) work by altering the density of a chemical layer to form the eqivalent of pits, as such the reflectivity is not as good as with either R or commerical disks. The process of re-writing the disk comes from smoothing those areas out with another burst of light, making the RW disk akin to the concept of "flash memory" although it's a more a photographic process than and electrical process.

The reflectivity, pit size and ability of the LED or laser to track (hence the benefit of "land pits") determines if a drive can read the disk or not. Firmware in the player help make reading of all disks possible.

Commercial disks are aluminized for greatest reflectiviy and use deep pits to change the lenght of laser travel for reading. R disks are silverized, which offers less reflectivty, plus the chemical (that coloration) also lessens reflectivy. The darkened pits or melted pits aren't as effective as actual burned pits in the under surface layer.

HDDVD uses the same concept but with a diffent pit size and tracking size.

BluRay moves the pits to 1mm below the surface so that they can make even smaller pits, but this makes compatiblity with player a major problem as they have to adjust for the difference in pit depth.

Answer 3

DVD+R is a recordable DVD format similar to CD-R. A DVD+R can record data only once and then the data becomes permanent on the disc. The disc can not be recorded onto a second time.
DVD+RW is a re-recordable format similar to CD-RW. The data on a DVD+RW disc can be erased and recorded over numerous times without damaging the medium.
DVDs created by a +R/+RW device can be read by most commercial DVD-ROM players.

DVD-R is a recordable DVD format similar to CD-R and DVD+R. A DVD-R can record data only once and then the data becomes permanent on the disc. The disc cannot be recorded onto a second time. There also are two additional standards for DVD-R disks: DVD-RG for general use, and DVD-RA for authoring, which is used for mastering DVD video or data and is not typically available to the general public.
DVD-RW is a re-recordable format similar to CD-RW or DVD+RW. The data on a DVD-RW disc can be erased and recorded over numerous times without damaging the medium.

Hope that helps!

Answer 4

It's just another form of blank media. It can be played in certain DVD players like the DVD-R. You are able to use it to burn a movie with.

Answer 5

In computer technology,

"R" stands for READ & "RW" stands for READ & WRITE

so DVD + R means DVD Reader......i.e. u can only read the dvd nt write(burn).

Answer 6

this is only dvd for play file not to write

Answer 7

DVD+R
(DIGITAL VERSATILE DISC + READABLE)