Micro SD card 32Go not detected or asking to format

[AnagraM]

Hello,

I received a 32go micro SD card.
I formated it with Windows, and it went smoothly.
I copied a mp3 album and inserted it in my D2, but it wasn't detected.

When I pluged the D2 to the computerd, it detected the card, but asked to format it, but with a size of 6,74 go.

I updated the firmware (I had the 3.57) to 2.59, and it still does the same.

Did I get a bad card? I'm puzzled as windows did detect it as a 32go usb device the first time.

Thanks