DV Info Net - With the Z7U a couple of us are having this trouble with the CF cards

Quote:

Originally Posted by Marshall Levy (Post 854870)

Also, your statement of 133x = 160Mbs....where'd you get that from? The equivalent is 20-25 whereas 266 yields 40~ and 300/306 yields 60~.

The definition is quoted on the Sandisk site amongst other places, but from Wikipedia - http://en.wikipedia.org/wiki/CompactFlash - look down to the last paragraph of the section "Technical Details":

"Card speed is usually specified in times ratings, i.e. 8x, 20x, 133x..., ...... where the number in front of 'x' when multiplied by 150 kB/s gives the speed of the card (for example, 20x = 3.0 MB/s)."

Note that 1x is 150 KBYTESs, so 1200Kbs. Hence it follows that 133x is 133x0.15=19.95MBs or 133x1.2=159.6Mbs, close enough to 20MBs or 160Mbs.

Going a bit off topic, but I like another quote from that Wikipedia entry: "CompactFlash cards are capable of withstanding more physical damage in comparison to other, flimsier designs. Recently a CompactFlash card was found to be still working after spending two years inside a camera that was submerged in shallow water"