What is the difference between DVD plus rw and DVD-rw?

Answer 1

DVD plus RW has been developed by Sony, Dell, HP, Philips, and Mcft. The DVD minus RW standard was developed by Pioneer and is used by Apple as well. DVD minus RW can have one layer of data written to them, while DVD plus RW can have multiple layers of data written to them.

Answer 2

In the "old days" before the industry was standardized there were several technologies for writing and re-writing DVD's so you had to know if your specific DVD writer was a + or a - type if you wanted to burn "multisession" (burn some files now and later burn some more) Any modern DVD writer could not care less so you can use either (but if you play the DVD back on an older unit you might have problems.

Answer 3

A DVD+R can only be recorded once. A DVD+RW can be recorded on multiple times until the disk is full. You add data to a DVD+RW, but you can't remove previously recorded data.