Forgive my ignorance, but does anybody understand the relationship between the new class speed ratings and the old 10x 40x 133x ratings? I was looking at a class 4 SDHC card (minimum 4MB transfer) and right next to it, there was a 133x card (20 MB sustained), and couldn't tell if these were comparable cards, or not. I realize 20 is bigger than 4, but as sustained doesn't necessarily mean it will give you a minimum of 4MB, and 4MB minimum doesn't imply less than 20MB sustained, does anyone have real world experience with this?
Thanks
Thanks