Developer's DescriptionBy CanonUpdate the firmware on your Canon Digital Rebel to take advantage of the latest features.EOS DIGITAL REBEL/EOS 300D DIGITAL Firmware Version 1.1.1 resolves the following issues: It increases the reliability of RemoteCapture application when the camera is used. It increases the reliability of operations when used on Windows XP and Mac OS X with [PTP] selected in [Communication]. This firmware Version 1.1.1 can only be installed on cameras with version 1.0.2 firmware.