The main difference between DVD+/-R and DVD+/-RW is that the R is a write-once format. Data can be burned on the DVD only once. On the other hand, an RW disc can be erased and rewritten hundreds of times.

Comparison chart

DVD-R versus DVD-RW comparison chart
Edit this comparison chartDVD-RDVD-RW
Layers Both single and dual layer DVD-R discs are available but there is less variety in the marketplace for double layer DVD-R discs compared to DVD+R. Single
Pronunciation DVD Dash R DVD Dash R W
Drag & Drop No, not supported. No, not supported.
Backed by DVD Forum (Apple, Pioneer , Mitsubishi, Hitachi, Time Warner etc.) DVD Forum (Apple, Pioneer , Mitsubishi, Hitachi, Time Warner etc.)

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"DVD-R vs DVD-RW." Diffen.com. Diffen LLC, n.d. Web. 19 Oct 2017. < >