Hyped about the Holographic Versatile Disc (HVD) mentioned earlier ? TDK has a different approach using existing Blu-ray technology

Correct. Stacking 10 layers and creating a 320GB disc, 32GB each.

The disc is structured with a cover layer, a hard coat layer (which protects from scratches and such), recording layers and a Si-Cu alloy layer, making it reliable for commercial use, quoted source.