Blu-ray is optical storage, not solid state storage.
Solid state storage is electronic storage (e.g. Flash drive, SSD, DRAM, SRAM, ROM).
blu-ray disc
50GB
All CD, DVD's and blu-ray's are multiplexed optical data storage. This is what movies and music is on.
Blu Ray disc
Wikipedia, the free encyclopedia says, "A Blu-ray Disc(also called BD) is a high-density optical disc format for the storage of digital media, including high-definition video." It was developed by Blu-Ray Disc Association, and it is similar to Sony's PDD.
A blu ray disc is a storage medium, not an input/output device.
Blu-ray or Blu-ray Disc is a digital optical disc data storage format. It was designed to supersede the DVD format, and is capable of storing several hours of video in high-definition.
A BD storage device refers to a Blu-ray Disc storage device, which is designed to read and write data on Blu-ray Discs. Blu-ray technology offers higher storage capacity compared to standard DVDs, allowing it to hold up to 25 GB per single-layer disc and 50 GB for dual-layer discs. These devices are commonly used for high-definition video playback, data storage, and gaming. Additionally, many Blu-ray players can also play DVDs and CDs.
Blu-ray Disc media include these features: 50GB capacity - Each disc can hold more than 10 standard DVDs. 25GB capacity - Each disc can hold more than 5 standard DVDs.
A single layer has a total capacity of 25 GB
The name Blu-ray Disc refers to the blue laser used to read the disc, which allows for six times more storage than on a DVD. The term Blu was used because blue is commonly used in English and therefore not registrable as a trademark.Wikipedia-en
A blu-ray disc player is a disc player that plays blu-ray discs and DVDs. They usually used with TVs.