The
manual says
2GB 60 mins@VGA 30fps, 96 mins@vga 15ps, 114mins @QVGA 30fps, 230mins @ QVGA 15fps.
But being a card it should be quick/cheap enough to drop another in.
Mark whilst it did not actually say anything in the manual apart from you cannot turn it off whilst it is usb connected. Can the thing be permanently powered from a USB. Yes I have USB power on my bike