I have used 2, 4 and 8 GB cards in it (firmware version 1.03). You simply stop a recording before the 2 GB limit, or it stops itself, saves the file, and turns off. You start a new file, named sequentially, and have up to 2 GB to record in that one. With an 8 GB card at 24 bits 44.1 kH you can record almost 9 hours in four or more files of up to 2 hours 12 minutes each.
Jeff