A storage system that contains multiple optical drives that read and write the media simultaneously. Libraries may hold one disc per drive or have storage for any number of discs or cartridges ...

Optical media also have a 30-year life and are less vulnerable to extreme hot or cold. However, as a transportable storage medium, they have mostly been superseded by USB-based flash drives and ...

However, the disks aren’t any thicker than an optical disk you might use today in your home theater or console gaming setup, as the layers are so thin and fit only one micrometer apart.