DVDR
DVD-R
DVD-R is a DVD recordable format. A DVD-R typically has a storage capacity of 4.7 GB. Pioneer has also developed an 8.5 GB dual layer version, DVD-R DL, which appeared on the market in 2005.The above text is a snippet from Wikipedia: DVD-R
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DVD+R
A DVD+R is a recordable optical disc. It is similar to, but incompatible with, the older DVD-R standard. A DVD+R is a write-once optical disc with 4.7 gigabytes of storage, generally used for non-volatile data storage or video applications.The above text is a snippet from Wikipedia: DVD+R
and as such is available under the Creative Commons Attribution/Share-Alike License.