| DVDs catching up? | | Print | |
| Written by Hoakz | |
| Sunday, 08 July 2007 | |
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Once upon a time a CD was large. Huge. You used it to save lots and lots of data. Today I would have to use more than 300 4.4 GB DVDs to save all my data, and that only includes the data on hard drives. Making back-ups becomes a question of selecting what to back-up and what to leave for chance. A real pain. But there might be light at the end of the tunnel. Researches at the Technical University of Berlin claims they've managed to put up to 500 GB of data on a CD/DVD-sized disc This is (layman's interpretation) done by using holograms. The disc is transparent (wonder how that will work with labeling?) and uses ten layers of data (to compare with blu-rays that use two, and ordinary DVDs that use one). Anyway, sometime around 2010 they might be able to fit as much as 1 Terabyte to a CD-sized disc. That's probably the same time as hard drives comes in 10-20 Terabyte sizes, and soon after the 1TB DVD will once more be insufficient. Wheehoo... |