Quote:
Originally Posted by chedda_chez
stroths -
thanks for the heads up bro...quick question tho, class 4 class 6??? what does all that mean?
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Speed is the diference.
SD Speed Class Ratings
SDHC cards have
SD Speed Class Ratings defined by the SD Association. The SD Speed Class Ratings specify the following
minimum write speeds based on "
the best fragmented state where no memory unit is occupied":
[19]- Class 2: 2 MB/s
- Class 4: 4 MB/s
- Class 6: 6 MB/s
SDHC cards will often also advertise a maximum speed (such as 133x or 150x) in addition to this minimum Speed Class Rating. See section "Speeds" in the article below for a further explanation. One critical difference between the Speed Class and the maximum speed ratings is the ability of the host device to query the SD card for the speed class and determine the best location to store data that meets the performance required. "Maximum speed" ratings are quoted by the manufacturers but unverified by any independent evaluation process.
You can read the whole thing here:
http://en.wikipedia.org/wiki/Secure_Digital_card