Full Details from Amazon.com : http://www.amazon.com/gp/product/B0076Z9Q0W?tag=onigi-20
M-Disc DVD R 4.7GB 4x 3 Color Silk-screen Printed w/write in area (25 Discs)
Must be Burned with M-Ready Drive
1000 Year Archival Media
3 Color Silk-screen Printed wwrite in area 25 Discs
47GB
4x Write 16x read
The New Standard In Digital Storage