A DVD-RW is a rewritable optical disc with a storage capacity of 4.7 GB. This rewritable DVD format was introduced in 1997 but it saw major technological changes in 2001. In 2001 this cheap blank DVD RW was fully revised and its capacity was increased from 2.8 GB to 4.7 GB.

Frequently used in daily usage, this cheap DVD RW can be rewritten about 1,000 times, in comparison with the CD-RW standard. DVD RW is basically used for storing volatile data such as backups or collections of files. Despite being so advantageous they are not used for home DVD video recorders. Because originally this cheap blank DVD RW was designed to store data and volatile information.

Now manufacturers have finally started releasing DVD recorders using this format. DVD RW disc is playable in three quarters of today´s DVD players. And this rewritable DVD RW is significantly cheaper than other rewritable counterparts and also offers high quality storage of data.

However, DVD RW is more like CD-RW, this means to change data, one must erase the whole disc and start over again. DVD RW is a recordable and rewritable device that meets the expanded demands of personal and professional video as well as still uncharted applications.

This cheap blank DVD RW has a special phase changing metal alloy. This alloy can be switched back and forth between a crystalline phase and an unstructured phase. This results in changing the reflectivity, depending on the power of the laser beam. Thus data can be written, erased and re-written. This is the reason why people prefer this DVD format as it can be used again and again.

People prefer to buy this cheap blank DVD RW in bulk as this not only saves time but also a certain amount of money.

Online you can find an array of suppliers providing blank DVD RW at a cheaper rate but it’s Ketta that heads the list. Ketta provides top quality cheap blank DVD RWs at competitive rates. And bulk buying can make you fetch healthy discounts. It hosts the blank DVD RWs of every big brand ensuring high quality and value for money.

Therefore if you want to store volatile or temporary data then this cheap blank DVD RW is the best option. For more information on cheap blank DVD discs please visit http://www.ketta.com.