Blu-ray Disc Capacity

Blu-ray (Blu-ray Disc which also commonly referred to as BD) is one of the next-generation optical disc format after DVD. This is a medium of optical disc storage which widely used in the high-quality video and high-capacity data storage to meet the increasingly stringent requirement on the multimedia quality. Blu-ray discs are named because of its use of wavelength 405 nanometers (nm) blue laser beam to read and write data. It just different from the DVD which uses 650 nm wavelength red light reader and CD uses 780 nanometer wavelength.

Since the technology of Blu-ray disc on reading and writing data is different from that of DVD and CD, the Blu-ray storage capacity may also different from CD and DVD disc. Then what's the capacity of Blu-ray disc? The Blu-ray disc capacity is different according to the storage type. If you are interested in each type of Bluray disc capacity, don't hesitate to read on to learn each Blu-ray disc storage capacity now.

Blu-ray Disc Capacity

The benefit of Blu-ray which using a blue-violet laser (405nm) is that it has a shorter wavelength than a red laser (650nm) used by DVD, which enables to focus the laser spot with even greater precision. Besides, media data can also be stored more tightly and stored with less space occupied because of this reason. So even Blu-ray disc has the same size as a CD/DVD, it is still able to store more data on the Blu-ray disc.

A single-layer Blu-ray Disc capacity is 25 or 27GB which means it is enough to burn a 4-hour high-definition video on a single-layer Blu-ray disc. The Blu-ray storage capacity of Dual-layer disc can store up to 46 or 54GB, that's to say it is enough to burn up to 8 hours of a high-resolution video on a Dual-layer Blu-ray disc. The capacity of four-layer Blu-ray disc is 100GB. There is one thing you should pay attention to is that no matter how many data layers a Blu-ray Disc contains, the basic principle Blu-ray disc capacity is 25 GB for each layer.

To increase the Blu-ray disc storage capacity can be simply achieved by adding more layers to the disc.

Once you are not satisfied with the storage of your Blu-ray disc, you can simply rip the Blu-ray movies to your computer hard drive for backup. AVCWare Blu-ray DVD Ripper is an useful Blu-ray ripping software, which enables you to rip Bu-ray movies to commonly used video format for saving onto hard drive in less space with the original video quality. If you are interested in this Blu-ray Ripper, you can just get it from the link below for a free trial right now!

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