M-DISC: Designed To Endure - Liquid Nitrogen
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Uploaded by millenniata on Aug 12, 2011
This second demonstration also highlights the inherent weakness in a DVD+R or DVD-R disc caused by the organic dyes in the center of the disc.
This demonstration works because the organic dyes in the center of the DVD+R or DVD-R have very little mechanical strength. Therefore, the interior of the disc cannot be substantially bonded together. This is one of the major reasons why delamination of a disc is a serious issue for failure and Data Loss.
The M-DISC, however, has a robust, mechanically strong, inorganic material at the center of the disc that provides a very good foundation for bonding the disc together. There is no mechanically weak layer in the M-DISC, therefore the bonding is very strong, and the disc can withstand extreme abuse.
Even though the polycarbonate layer of the M-DISC is similar to that of other discs, the inorganic data layer provides for a stronger and more endurable bond.
The weak layers of all dye based DVDs also make them susceptible to failure and delamination due to temperature and humidity.
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I've got one concern -- the DVD was subjected to a hot-to-cold cycle, while the M-DISC saw cold-to-hot. Can you show them in an "apples to apples" comparison, both going through the same torture?
rocketscientistgeek 4 months ago 7
@rocketscientistgeek
Exactly! Apples to apples please...
Hot - > Cold
First hot temperature makes all the micro cracks bigger and water enters them and when you dip it into cold, water freezes and expands causing destruction.
Cold -> Hot
They dip dry disc intonitrogen. The temperature lowers, but unless material shrinks a lot in the process, it causess little destruction. Maybe the disc is a little more brittle. Basicly it is a much safer process...
aerious3 3 months ago 5