Well, I'm on a Canadian Carrier (Bell/Aliant) and just got my Touch last week. I plugged the default card up with the usual stuff and whoala! All gone. Quite the magic trick. All I saw was boxes, lines, squiglies and so on. I formated to Fat 16 like above and SO FAR...all's good. Mind you, I didn't install anything to the card this time...just the pics I took.

Does anyone know if the fix from HTC is being release soon? Any news?

Interesting...
 

In another forum where this problem is being discussed, a member posted the following info thoughts, which I believe may be onto something:

is that a 3 V or a 5 Volt SD card?

Its hard to find a 5 v card anymore ... but you can get anything on Ebay. The 3 V work with anything... but the 5v can fail in newer devices. There are a couple of reasons for this but I'll explain the obvious one.
Signals on a bus to the eye look like square waves ... but as a practical matter there is always a transition time when a bit changes from a 1 to 0 (i.e. 5v to 0 Volts. changing the voltage is like changing a pump pressure from 0lbs to 100 lbs. It simply isn't possible to do it in zero time.
The 3 volt cards have a speed advantage simply because for any given chang rate it takes less time to go from zero to 3 than from zero to 5.

The second reason I ask is that 5V cards are tested only down to (4.5? I seem to remember) ... when running a 5VDC card at 3VDC you are flirting with production variances ...one may work one may not , but we're sure none were tested.

Good luck!

I had the same problem and found the following...

1) The data was not really gone (if you put the card in an adapter nad in your computer, you will see that there is space used...)

2) There is a utility called Data Doctor Recover Memory card that costs $69.00. This utility boasts being able to recover hte data on the card -- I did not buy the software, but when I ran the demo it showed all my data was on the card.

3) The problem appears to be caused by the phone crashing while accessing ANY data on the card, whether it be mail, ringtones, music, etc.)

Hope that my experience gives everyone some insight as to what is really happening.

what prevents writing to the card? I can read from it, but can't copy or install anything to it........any hack or fix for this w/out formating?

add me to the list... i can't even get the phone to recognize that the card is even in there... and I'm using the 512MB one that came with the phone... don't have an adapter to put it in my card reader or i'd try that route... anyone have suggestions on getting the phone to recognize that the card is indeed in there? yes I've made sure it is seated well... also, do you have to soft-reset if you insert the card while the power is on? how do you format the card from the phone?

wondering if there's something in the registry that we can change to allow writing to the card again..........w/out reformatting.

Can you reference where you obtained this information?

Also, found this quote on xda forums:

ppcgeeks.com found a minor solution to this, and that is to prevent the device from fully going to sleep by using s2u2 to turn the screen off but leave the device on, it prevents 3 problems people have been having 1, it prevents the corruption issue with microsd cards, and it prevents the device from not waking up from sleep and as well as prevents people from missing calls because of that

help on getting my card to actually show it's in there? 512mB that came w/ the phone =[

That is my problem to a "T". Both mine and my wife's can read but not write to the card. I reformatted my 2g card, now I can only "see" 1.4g. How do I fix THAT?

Yesterday my touch said it had a new storage card. I accepted that. Looked at file explorer and everything seems to be intact.