What is an erasable optical disc?

An erasable optical disc is a type of optical storage medium that allows data to be written, erased, and rewritten multiple times. Unlike traditional writable discs, which can only be recorded once, erasable optical discs, such as CD-RWs and DVD-RWs, utilize a special material that enables the data to be changed. This makes them versatile for tasks like data backup and temporary storage, as users can update their contents as needed. However, they generally have a limited number of rewrite cycles compared to traditional read-only optical discs.