FRANCHISSEUR Robert wrote on 04/20/2011 04:03 PM:
...
> So I think the problem is with the USB key (brand new (: and I will
> try an other one.
If you have a Windows system available you might want to try the
Panasonic SDHC formatter:
http://panasonic.jp/support/global/cs/sd/download/index.html
It has fixed more than on flaky USB key for me.
Phil