TDK Corp showcased an optical disc with a capacity of 1 Tbyte (1,024 Gbytes) at Ceatec Japan 2010, a trade show that runs from Oct 5 to 9, 2010, in Japan.
The company realized the large capacity by forming 16 recording layers, each of which has a capacity of 32 Gbytes on each side of the disc. . .
"The material has already been used for part of a Blu-ray disc," the company said. "So, it does not have a problem of, for example, durability."
The only problem that has to be solved is the thickness of the disc.
"According to the specifications of the Blu-ray Disc, the thickness of a recording layer has to be 100μm or less," TDK said. "But the recording layer of the new disc is 260μm in thickness. And it causes the aberration of an optical lens."