Finding the class of SD card

[OM3GA]

Hi all!

First off, love this site! This site has been a big help since I've gotten into photography! Keep up the good work guys!!

Now, for my question. I've been reading on Wikipedia about SD card classes, and now I want to know what class my cards are. Is there an application to find out what class my cards are? I use Windows 7 (x64) and OS X 10.6.2 if that helps.

Thanks!

[LoveDSLR]

Speed info (common ratings and minimum transfer rates):

Secure Digital - Wikipedia, the free encyclopedia

Speed class on label:

SD Speed Class - SD Card Association

[OM3GA]

Thank you for the reply, LoveDSLR! As I've said, I've already read the Wikipedia artical on SD cards. As for the second link, the speed rating isn't inscribed on my cards, this is why I'm seeing if an application has been made for this purpouse.

[LoveDSLR]

You can copy file(s) from SDHC card to PC and note the transfer speed. Otherwise, use any benchmark program. Then lookup the class from chart.