We have the "DVD-R", "DVD+R", "DVD+RW" and "DVD-RW". So what's the difference between these names?? aren't all DVD the same?? Well you will figure that out yourself when you finish reading this post.
Starting with the similar alphabet in there names, some have "R" and some have "RW". The "R" stands for "Readable" while the "W" stands for "Writeable".

DVD+R and DVD-R
A DVD+R and DVD-R are disc storage formats that can be written only once and read as many times as possible. I.e once it has been written, it can not be erased through it entire digital life. This is similar to a type of computer memory chip called "PROM : Programmable Read Only Memory" which cannot be erased or deleted once it is programmed.

DVD-RW and DVD+RW
The DVD-RW and DVD+RW are disc storage formats that can read and written multiple times. It is recommended for a routine system backup. They can be called "rewriteable" combination of readable and writeable.

Note: The DVD-R and DVD-RW are sister discs, the difference is just that one is writeable once and the other one is writeable many times. Same thing applys to DVD+R and DVD+RW.

What you need to know about the one of "minus(DVD-R/DVD-RW)" and "plus (DVD+R/DVD+RW)"
* The DVD-R/RW standard was developed by Pioneer, and is used primarily by Apple and Pioneer. These "minus" discs can only be written to in one layer on the discs surface. In addition, this format is supported by the DVD forum, but is in no way an industry standard. DVD-R/RW discs are cheaper than the "plus" format.

* The DVD+R/RW format is supported by Philips, Dell, Sony, HP, and Mcft. These discs can be written to in multiple layers, giving them slightly better and more disc storage than the "minus" format. Because of this additional capacity, they are slightly more expensive than "minus" discs.
SOURCE: http://starxclusive.com/the-difference-between-dvd-r-dvdr-dvdrw-and-dvd-rw/

Maleeq , cc lalasticlala

Informative write up!

Thanks bro

This should be moved to the front page ASAP.