which card for a XZ-2 ?
Try an UHS-I compatible card (Ultra High Speed one) like the SanDisk Ultra SDHC 16GB Class 10 card (about 16EUR in Germany).
The marking on the package is 'SDHC I' for short.
The XZ-2 and XZ-10 are UHS-I compatible - it's worth trying this feature!
we don't see that we don't see (eye's blind spot)