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What is the difference between and Blu-ray? , also known as "Digital Versatile Disc" or "Digital Video Disc", is an optical disc storage media format. Blu-ray Disc (also known as Blu-ray or BD) is an optical disc storage medium designed to go beyond the standard format. HD is a discontinued digital optical media format which is being developed as one standard for high-definition . Blu-ray can be literally understood to use the blue laser technology while uses red laser technology. discs can be played on Blu-ray drives but Blu-ray discs are not compatible with drives.

What are their sizes? Normally BD-R/RE Single layer disc takes 25GB, while BD-R/RE Dual layer disc takes about 50GB. -R/RW single-sided, single-layer disc takes about 4.7GB, while -R/RW single-sided, double-layer disc takes about 8.5GB. What’s more, -R/RW double-sided, single-layer and the rare double-sided, double-layer disc takes about 9.4GB. HD -R/RW Single layer disc takes about 15GB, while HD -R/RW Dual layer disc takes about 30GB. HD -RAM disc takes about 20GB.

Most of software can copy blu-ray discs or HD DVDs to your hard drives and remove encryption, protection and region code. It has all the features of video and more and has incomparable flexibility and features due to the Java-based environment. At the sane time, it is compatible with extensively interactive applications, and is accessible to Internet connectivity. Here we make a comparison about software.

There are three Blu-ray applications: Blue-Cloner, iToolSoft Blu-Ray Copy and Blindwrite. Blue-Cloner has highest overall rating. If you purchase Blue-Cloner, you can get bonus software. Blue-Cloner and Blindwrite can decrypt Blu-ray discs and restore defective or scratched DVDs. They all have distinctive features and excellent support service. They can be operated under Windows 98, 2000, xp and vista.

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