Blu-ray Media

Blu-ray Recordables (BD-R) is the format of the next generation for disc recording. BD-R's biggest advantage over recordable DVDs is the storage capacity; a single layer BD-R disc can store 25GB and a dual layer BD-DL disc can store 50GB. While the DVD recordable format relies on a red laser to read & write data, Blu-ray discs use a blue-violet laser instead (hence its namesake). This allows data to be packed more tightly and stored in less space. Recordable Blu-ray media can fit more data even though it's on a disc that is the same size as a CD and DVD.

There are currently 4 different recordable Blu-ray Disc formats: BD-R 25 (write once, single-side, single-layer, 25GB), BD-R 50 (write once, single-side, dual-layer, 50GB), BD-RE 25 (rewritable, single-side, single-layer, 25GB) and BD-RE 50 (rewritable, single-side, dual-layer, 50GB). The Blu-ray BD-R write-once format makes use of an inorganic material in the recording layer, entirely different from the organic dye used in previous types of write once formats. Because the recording layer is not easily damaged by light, blu ray discs have outstanding archivability.