Checkmark «Restore Entire Disk» from the GRUB menu. (slashgear.com)
This outcome can occur if something interferes with the normal cooling process that leads to star formation and instead drives the entire disk to become unstable, rapidly funneling matter to the center, much like water flowing down a bathtub drain when you pull the plug. (scientificamerican.com)
Holographic media can store huge amounts of data because information is encoded in layers throughout the entire disk, not just on a single reflective surface as in today's optical media. (discovermagazine.com)