Optical media refers to any data storage device or equipment that uses optical data storage and retrieval techniques to read and write data. It stores data digitally on a media device and uses a laser to read data from it.
Optical media is also known as optical storage.
Optical media provides more data capacity and longer media device life than earlier methods of data storage. The data on optical media is stored in a digital form in circular sectors and written, edited and accessed using a laser head (inside an optical media drive). Optical media units are often portable and can easily be transported to different systems and locations. CD, DVD and Blu-ray are currently the most common forms of optical media devices.