A Memory Card Torture Test
An anonymous reader writes "Would you buy a Ferrari and put regular gas into it? I don't think so. So why are most of us buying expensive digital cameras and using cheap memory cards? If you want to find out how much better a high speed memory card is, check out this group test of high capacity compact flash and SD cards."
I think they meant, would you put regular (85 or 87 octane) gas into your Ferrari, instead of ponying up the extra 20 cents a gallon for premium (91 or 93 octane).
Higher octane gas resists burning better. In a high compression engine (or a turbo/supercharged engine), the extra pressure can make gas detonate instead of burn. That detonation is bad for the engine. Lower performance engines don't put as much stress on the gasoline, so they can burn lower-octane gasoline. Putting high-octane gas in your low-performance engine doesn't do anything except lighten your wallet.
Read here for more information:
http://en.wikipedia.org/wiki/Octane_rating