The HS-DVD is the proprietary disc format of Olympus Inc. It was released on March 30, 2001 and became widely used by 2005.
The HS-DVD has 12 TB of usable space, is scratch and smudge resistant, and waterproof. It has a maximum of 512 GB/s read and write speed and a 256-bit stream algorithm. It weighs 14.8 grams, and can digitally store content in 2160p (4K) resolution.