Hi All,

I don't know much about engineering of flash memory, but I have an SD card
that always seems to go on the fritz when it fills up to a certain point.
It's when I get around 15megs of data on it, then it goes nuts. If it's in
my Pentax Optio 550, the whole camera freezes and I have to pull the battery
out to get the camera to respond. If it's in my Canon Optura 20, it spends
forever trying to write data to the card, and then gives a "card write
error." If it's in my Sharp Zaurus, it takes forever, then gives me a "card
I/O error" message.

I am wondering, is there any way to format a SD card, similar to the way you
format a regular disk, and block off the bad sectors, so that the rest of
the disc is still usable? Or anything like this? The "format" commands in
my camera and camcorder did not do seem to help.

Thanks for any help!
-Josh