DVD recordable and DVD rewritable are optical disc recording technologies. Both terms describe DVD optical discs that can be written to by a DVD recorder, whereas only 'rewritable' discs are able to erase and rewrite data. … See more

"R" format DVDs can be written once and read arbitrarily many times, whereas "RW" formats can be written to repeatedly. Thus, "R" format discs are only suited to non-volatile data storage, … See more

History
The DVD+R format was developed by a coalition of corporations—now known as the DVD+RW Alliance—in mid-2002, stemming from a research project at Hewlett-Packard Laboratories (a.k.a. HP Labs) that … See more

DVD recordable media are sold in two standard sizes, a regular 12 cm (5 in) size for home recording and computer usage, and a small 8 cm (3 in) size (sometimes known as a miniDVD) for use in compact camcorders. The smaller Mini DVD-RW, for example, holds … See more

The larger storage capacity of a DVD-R compared to a CD-R is achieved by focusing the laser to a smaller point, creating smaller 'pits' … See more

The DVD-R format was developed by Pioneer in 1997. It is supported by most normal DVD players and is approved by the DVD Forum. It has broader playback compatibility than DVD+R, especially with much older players. The dash format uses a " See more

As RAM stands for Random Access Memory, it works more or less like a hard-drive and was designed for corporate back-up use. Developed in 1996, DVD-RAM is a rewritable … See more