DVD+R and DVD-R; What was that about?

LiteOn x24 DVD±R/DL Writer Dual Layer 5.25 SATA Black OEM LN53931

DVD-R 4.7GB Multilaser com envelope plástico - unidade - CCL

What Is the Difference Between DVD-R and DVD+R?

OWC 16X DVD-R Write-Once Disc with Slimline Jewel Case

Does anyone have any idea how to open a DVD-R disc? Doesn't open on any hard drive I have. It looks like I have to buy a disc reader to open it

compact disc - My DVD+R (RW) is not erasable/rewritable - Super User

Basic info on DVD+R , DVD-R, Lightscribe ( Recommendations below

What Are Recordable DVD Drives?

Tech Support: DVD-R vs DVD+R

DVD R or Recordable DVD Media

DVD-R MAKETECH 4.7GB

Dvd-R Microbuy com Logo em Promoção na Americanas

What are DVD-R discs? An explanation of how DVD-Rs work and their

HP DVD-R DVDR DVD R 16x 4.7GB Recordable Blank Disc by 50's or

DVD-R VS DVD+R: Difference between DVD-R and DVD+R