I have a 32GB Sandisk microSD. As an experiment I tried it on a Windows Phone 7, and as expected it said it was not fast enough.

microSD was for a month on a shelf.
Now, I can't see it in any PC I have, neither with nor without microSD->SD adapter. Disk manager does not see it at all. Diskpart does not see it.

I am not sure if that killed the microSD, or if its fs was modified to some extent to make it unreadable. But, I should at least see it in diskpart / diskmanager.

I am afraid its dead. What do you guys think?