What is meant by DVD+R & DVD-R? Pls EXPLAIN?

Question

What is meant by DVD+R & DVD-R? Pls EXPLAIN

Answer 1

Hi Marin,

The DVD+R and DVD-R are competing formats much like the old VHS and Beta formats in video tapes. Today most drives are Hybrid and handle both formats. They are usually labeled DVD+/-R

The market for recordable DVD technology never settled down in favor of either the plus or dash formats, which is mostly the result of the increasing numbers of dual-format devices that can record to both formats; it has become very difficult to find new devices that can only record to one of the formats. However, because the DVD-R format has been in use since 1997, it has had a five-year lead on DVD+R. As such, older or cheaper DVD players (up to 2004 vintage) are more likely to favor the DVD-R standard exclusively, and when creating DVD’s for distribution (where the playing unit is unknown or older) the DVD-R format would normally be preferable.

My personal experience has led me towards using the +R. It is slightly better at error handling so more tolerant of dirty or damaged media and also more tolerant to the subtle differences between players.

Norm

Answer 2

A DVD+R is a once-writable optical disc with 4.7 GB (4.377 GiB) of storage capacity (more precisely, 2295104 sectors of 2048 bytes each). It has slightly less storage capacity than the DVD-R (4.382 GiB). The format was developed by a coalition of corporations, known as the DVD+RW Alliance, in mid 2002. Since the DVD+R format is a competing format to the DVD-R format, which is developed by the DVD Forum, it had not been approved by the DVD Forum, which claimed that the DVD+R format was not an official DVD format until Jan 25, 2008.

In October of 2003, it was demonstrated that double layer technology could be used with a DVD+R disc to nearly double the capacity to 8.5 GB per disc. Manufacturers have incorporated this technology into commercial devices since mid-2004 (see DVD+R DL).

Unlike DVD+RW discs, DVD+R discs can only be written to once. Because of this, DVD+R discs are suited to applications such as nonvolatile data storage, audio, or video. This can cause confusion because the DVD+RW Alliance logo is a stylized "RW" (See image, below). Thus, a DVD+R disc can have the RW logo, but it is not rewritable.

DVD-R is a DVD recordable format. A DVD-R typically has a storage capacity of 4.71 GB (or 4,488 MiB), although the capacity of the original standard developed by Pioneer was 3.95 GB (3.68 GiB). Both values are larger than the storage capacity of its optical predecessor, the 700 MB CD-R.

Pioneer has also developed an 8.54 GB dual layer version, which appeared on the market in 2005. Data on a DVD-R cannot be changed, whereas a DVD-RW (DVD-rewritable) can be rewritten multiple (1000+) times. DVD-R(W) is one of three competing industry standard DVD recordable formats; the others are DVD+R(W) and DVD-RAM.

Answer 3

The dvd+ and -r's are writeable disks, the only difference is the format they use (like vhs and beta). Both disks are readable by devices but to burn to a + disk you need a + burner, and the same for - disks. All of the writers today are dual format so they can burn to either a + or - disk.