Largest microSD card on ethernet shield ?

Hi, Just about to order a new microSD card for my rev 3 ethernet shield. I've only used a 512MB up until now, but was wondering what the maximum size that is supported ? Many thanks

It appears to be 64GB, according to fat16lib.
http://forum.arduino.cc/index.php?topic=182349.msg1350991#msg1350991

SurferTim:
It appears to be 64GB, according to fat16lib.
Largest SD Card Accepted by Arduino Ethernet Shield? - Storage - Arduino Forum

Hi Tim,
Very useful info ! Many thanks !