How long will the data recorded on a CD-R disc remain readable?
Lifetime estimation of any storage medium is a very complex and statistics -based process. Improper testing or measurement procedures can seriously impact and compromise lifetime estimates. ANSI committee IT-9 is currently developing comprehensive guidelines for CD-ROM and CD-R life estimation. CD-R media manufactures have performed extensive media longevity studies using these industry defined tests and mathematical modeling techniques, with results claiming longevity from 70 years to over 200 years. The caveat is how you handle and store the media. With proper handling and storage your CD-Rs can be usable for as long as you want.
