TDK demonstrates a purple-blue laser diode in CEATEC Japan, promising recording capacities that reach the 100GB on a single disk. The laser uses the same wavelength as a blue laser technology, and records on specially developed disks in 4 layers! As a result, a maximum capacity of 100GB can be achieved. The maximum recording speed reaches the 144 Mbps.

Believe it or not, the future will show us whether such optimistic projects will ever reach the product line.