My suggestion, if anyone cares...

I understand how it is confusing how a 4GB SDHC card, does not work on the sansa express…

But SDHC, is TOTALLY different, from SD.

They may look the same, and act the same… but are as different as you and me.

SDHC cards, work only on devices that say SDHC compliant.  If they dont say that, then they have no expecations of being SDHC compliant.

Use a car for example…

They are both filled up at gas stations… and the desiel pump looks EXTREMELY similar to the regular gas pump, but they are 2 different beasts!