aHardware & Software - 10 
a        years
aOptical & Digital Disks,
a        CD-ROM
iAblative Recording of Tellurium - 30-40 years*
iDye-Based - 15 years*
iDual Alloy - 100 years*
iThermal Bubble - 30 years*
iPhase Change - 15 years*
iMagneto-Optical - 10-40 years*
i
*Vendor claim of playback stability
Media Life Expectancies
•Comparison
–Paper - 500 years
–Silver/Polyester Base - 500 years