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Writeable CDs (CD-R or RW) – 800MB
These have been the home backup workhorse for the past decade, even when they were surpassed by writeable DVDs, they’ve stood their ground due to their extremely low cost and the fact that every PC incorporates a CD-ROM drive, and has done for years.
Not counting early CD-Writer technology which would more often than not turn your then $10+ blank CD into nothing more than a drinks coaster if you dared to touch the mouse whilst the CD was burning, they have now become very reliable.
The latest CD-Writer hardware and software, with buffer under-run protection, makes it almost impossible to churn out a dud-disc. One point to note though, is if you plan to keep your data on a CD for years into the future, be sure to spend the extra couple of dollars and buy high quality CDs, as the dye in the cheap stuff can and will deteriorate over time, leaving your backup useless.
Pros: Cheap, Universal, reasonable storage size, Reliable when cared for.
Cons: Limited size when compared to DVD’s, easily damaged, CD-R’s can only be written once, and CD-RWs are a pain to re-write compared to other backup products on the market.
Also breif = brief!