Question

what is the Blu-ray disc called blu-ray? Name the different Blu-ray format​

Answer 1

Blu-ray Disc (BD), often known simply as Blu-ray, is a digital optical disc data storage format designed to supersede the DVD format, capable of storing several hours of video in high-definition (HDTV 720p and 1080p).

BD-R, BD-RE, and BD DL

BD-R discs are write-only and BD-RE is rewriteable. The standard size for these discs Is 25 GB and they only have one layer. These cost about $1 per disc. After a while, the dual-layer Blu-ray discs started to appear.