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    In every family, someone ends up with “the stuff.” It is the goal of The Family Curator to inspire, enlighten, and encourage other family curators in their efforts to preserve and share their own family treasures.

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    Entries in mdisc (1)

    Tuesday
    Oct222013

    M-Disc the 1,000 Year Archival Solution - Tech Tuesday Review

    Right now, I have a stack of cassette tapes on my desk that need to be digitized and archived. I want those files readable in 25, 30, 50, or 100 years, and I don't want to have to worry about migrating from CD to CD or from one cloud service to another. I'm pretty excited about the M-Disc from Millenniata -- a new kind of archival disc that promises Write Once, Read Forever

     

    Until recently, family historians had to rely on multiple copies and regular updating to insure the good health and accessibility of digital files. The M-Disc (Millennial Disc) is a game-changer that brings long-term media storage to the home computer user in the popular DVD and Blu-ray format. The National Archives notes a 2 to 5 year life expectancy for CD/DVD media; M-Disc is rated to last at least 1,000 years and survived rigorous testing by the U.S. Department of Defense Naval Air Warfare Weapon's Division at China Lake, California

    The M-Disc records by engraving data on a single rock-hard layer, unlike conventional discs that record using organic dyes susceptible to fading and decay. If you've ever tried to read the files on a CD or DVD left on a car dashboard or forgotten on top of a CD player, you know that heat, humidity, and light can quickly destroy digital storage media. In contrast, the M-Disc is designed for longevity with materials resistant to oxidation and decay.

    The M-Disc looks different than a regular DVD -- it's transparent. Hold it up to the light and you can see through the disc. 

    M disc transparent

    This special disc technology requires an M-Disc compatible writer that can etch the rock-like layer of the M-Disc. I didn't have any difficulty using the LG Blu-ray BP40NS20 M-Disc-Ready burner sent to me by Millenniata with a pack of sample discs. The plug-and-play disc writer worked on both my iMac and Dell Windows 8 laptop; the included software is Windows only, but the writer was able to burn the M-Disc using my standard computer DVD software.

    I tested the M-Disc by burning the same set of files to an M-Disc using the PC and then the iMac. After successfully burning the discs, I was able to read both discs in either computer. 

    I also tried to burn the M-Disc using the regular iMac and Dell DVD burners and found that the disc was not recognized. You really do need an M-Disc Ready DVD writer to create the M-Disc, but the disc can be read by any computer CD/DVD reader. The M-Disc is designed for archiving files and does not allow erasing files.

    M-Disc Ready Drives are available in internal and externl models, and some PC computers are already offering the drives as a standard feature. Check the full list of compatible drives here.

    The M-Disc is available with 4.7GB capacity. If you have only JPEG image files, you will be able to archive thousands of images. According to Milleniata, on average, one disc can store

    • 8,000 photos [JPEG],
    • 240 minutes of video, or
    • over 100,000 documents
    My digital image files are mostly archival TIFF format, and very large files. On average a 600 dpi color scan might be 20 to 30 MB, many times the files are considerably larger. For instance, each scanned page of a 7 x 10-inch photo album is about 70 MB. One 4.7 DVD will hold about 60 of these extra-large TIFF images, or all of my digitized cassette tapes.
     
    Large file size translates into more discs or hard drives. Economical, efficient storage is important to me. I would much prefer to archive once to a disc, instead of regularly migrating files to new fresh DVDs. With one copy of my files online, one copy on an external hard drive, and one copy recorded to the archival M-Disc, I will have less work maintaining my digital archive.
     
    M-Disc longevity is appealing to anyone interested in long-term archival solutions. It's always a good idea to keep multiple copies of digital files, but any media that prolongs the life of the initial file makes preservation easier to manage over time. 
     

    Read more about M-Disc technology and Department of Defense testing at the M-Disc website www.mdisc.com