M-DISC

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M-DISC (Millenial Disc)
Logo of M-DISC.svg
Media type write once optical disc
Standard DVD, Blu-ray disc
Developed by Millenniata, Inc.
Dimensions 12 cm
Usage Archival storage
Extended from DVD-R, BD-R

M-DISC (Millennial Disc) is a write once optical disc technology available in DVD and Blu-ray forms.

Overview[edit]

Picture of an M-DISC with reflections from a monitor
M-DISC in open case
M-DISC "swirl" logo on a recorder
M-DISC "swirl" logo on an LG Blu-ray recorder

M-DISC's design is intended to provide greater archival media longevity.[1] Millenniata claims that properly stored M-DISC recordings will last 1000 years.[2] While the exact M-DISC are a trade secret,[3] the patents protecting the M-DISC technology asserts that the data layer is a "glassy carbon" and that the material is substantially inert to oxidation and has a melting point between 200°-1000 °C. [4][5]

A stress test was performed by the Department of Defense of the media, proving at the very least that M-Disc DVDs and Blu-rays are more durable than conventional DVDs and Blu-rays. "The discs were subject to the following test conditions in the environmental chamber: 85°C, 85% relative humidity (conditions specified in ECMA-379) and full spectrum light"[6][7]

Conventional DVD-R and BD-R use recording layers of organic dye and separate reflective layers.[8] M-DISC uses a single inorganic recording layer, with a higher powered laser. Thus, the M-DISC physically alters the recording layer, burning a permanent hole in the material. Recorded discs are readable in conventional drives.

LG Electronics, ASUS and Lite-On [9] produce drives which can record M-DISC media. Ritek produces M-DISC Blu-ray disc media, sold under the Imation, Ritek and M-DISC brands.[10][11]

History[edit]

M-DISC developer Millenniata, Inc. was co-founded by BYU professors Barry Lunt[12] and Matthew Linford,[13] along with CEO Henry O'Connell and CTO Doug Hansen.[14] The company was incorporated on May 13, 2010 in American Fork, Utah.[15]

References[edit]

External links[edit]