As a storage gadget, optical discs are very popular because of their large capacity and portability.
Today this article focuses on optical discs in many aspects.
An optical disc is a recording medium which uses the optical storage technology to read and write data.

Typical discs are about 1.2 mm thick (0.05 inches).
The data is stored on the disc by a laser or stamping machine.
Blu-ray Discs is the latest optical media that can store up to 400 GB of data (experimental).
It can be understood that R in these formats means recordable and RW means rewritable.
DVD-RW is a rewritable format, you’ve got the option to erase content and write new information.
Another advantage is that optical discs are more durable.
However, although the discs are more durable, environmental factors and everyday use tend to damage them.
The library and archives develop optical media save programs to ensure the continued availability of the optical discs.
So, when you are using an optical disc, you should be careful.
Here we will list some tips for you to save the optical disc longer.