Info from the Alcohol Homepage:
FIX Improved the accuracy of graphic of burning speed and image making speed.
FIX Improved the speed and usage of memory buffer while burning and making image files.
FIX Display more and correct name of DVD manufacturers in the advanced page of CDDVD manager while checking DVD media.
ADD Added support for some special ISO image files, e.g. MAC toast mode ISO image file.
ADD Add CD/DVD device sharing service
FIX Help Files updated.
FIX Improved the reading and writing engines.
FIX Fixed Some DPM of DVD-ROM bugs
FIX Fixed some minor bugs reported by users
FIX Updated Language translations
ADD Added Support for more devices, you can find more detailed information on our development page at http://www.alcohol-soft.com/devsupp/