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Although research into optical data storage has been ongoing for many decades, the first popular system was CD, introduced in 1982, adapted from audio to data storage (the CD-ROM format) with the 1985 Yellow Book, and re-adapted as the first mass market optical storage medium with CD-R and CD-RW in 1988.
CD-R media have an internal layer of dye used to store data. In a CD-RW disc, the recording layer is made of an alloy of silver and other metals—indium, antimony, and tellurium. [20] In CD-R media, the dye itself can degrade, causing data to become unreadable. As well as degradation of the dye, failure of a CD-R can be due to the reflective ...
Those 74 minutes come from the maximum playtime that the Red Book (audio CD standard) specifies for a digital audio CD (CD-DA); although now, most recordable CDs can hold 80 minutes worth of data. The DVD and Blu-ray discs hold a higher capacity of data, so reading or writing those discs in the same 74-minute time-frame requires a higher data ...
Both certificates of deposit (CDs) and share certificates are low-risk deposit accounts where your money can grow at a fixed rate. The main distinction between them is that CDs are products ...
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A CD-RW does not have as great a difference in reflectivity as a pressed CD or a CD-R, and so many earlier CD audio players cannot read CD-RW discs, although most later CD audio players and stand-alone DVD players can. CD-RWs follow the Orange Book standard.
High-yield savings accounts offer flexibility and access, while certificates of deposit can offer higher interest rates. Compare HYSAs and CDs to find the best for your budget.
Opening a CD right now could help you earn a higher rate of return than you could with a high-yield savings account over the same period. But this isn't a smart move if you think you may need to ...