"TeraDisc" where 1 terabyte of capacity is included in the DVD size

Although Blu - ray and HD DVD are sparking around the seat of the next - generation optical disc, perhaps this "TeraDisc"May conflict the fight.

With this "TeraDisc" technology, you can record 1 TB (= 1000 GB) in DVD size. Since the maximum capacity commercially available at the present time is 50 GB of Blu-ray, about 20 times of data will be included in the same size. Moreover, in the future, "TeraDisc" can record data of 5 TB (= 5000 GB) in the future.

Details are as follows.
How to fit 1TB of data on one CD-sized disc - News - Tech.co.uk

Mempile - Terabyte on a CD - TFOT

This technology was developed by Mempile in Israel. The thickness of the disc is 1 mm, the recording layer is 200 layers. Because the capacity per layer is 5 GB, 5 GB × 200 layers = 1000 GB.

This is an actual prototype


At the stage of April 2007, 300 GB prototype has been completed, and there are articles of the time below.

Israel Mempile, Prototype Optical Disk with Capacity of 300 Gbytes or More - Electronic Component Technology - Tech - On!

It seems that this has reached 1 TB at present.

In contrast to conventional optical disks, this "TeraDisc" is not to increase the light transmittance of the reflective film so that the laser light reaches the lower layer, but instead of using a nonlinear optical effect called two-photon absorption, It seems to be realizing that red laser is used for recording and playback.


Within 3 years, we are aiming for practical application for enterprises for the first time, the price of the reading drive of the initial prototype model is 3000 dollars (about 340,000 yen) for one unit, and in the case of 600 GB for one recording disc, from 30 dollars to 50 It seems that it is about dollars (about 3480 yen to 5800 yen). Needless to say, the price should have declined when it comes to consumer level. Perhaps it's perhaps making sense.