Holographic Disk Holds 1 TeraByte (Theoretically).

Maxell is coming out with a new data storage device that uses holographic technology!

With uncompressed storage capacities achieving 1.6 TeraBytes per disk and data rates as high as 120 MBPs, holographic technology is a true breakthrough in optical media.

First generation discs can hold 300 GB and has a 20 MBPs transfer rate.

Link (Thanks David R!)