Method to erase data stored on blu-ray disc

Details Method to erase data stored on blu-ray disc Method to erase data stored on blu-ray disc

2006-06-27

2010-11-16

Chow, Van N (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S275200

Reexamination Certificate

active

07835232

ABSTRACT:
A method to erase data stored on an erasable optical recording system is provided. The optical recording system includes a laser IO head having a blue-light laser, a red-light laser, and an infrared-light laser writing data on the blu-ray disc, the DVD disc, and CD disc, respectively. The method includes indexing the infrared-light laser of the laser IO head one track of the blu-ray disc every 0.4 revolutions after first 0.8 revolutions, to erase the data stored on the blu-ray disc.

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