i researched this product on several websites, which all said "works on mac" as well as pc. even went to the manufacturers website too. but after recieving the product, in the fine print on the box it shows it only works on VERY OLD macs. with operating systems several versions back and badly outdated. our oldest mac in the house is a G4 from 1999 - AND IT WON'T WORK ON A 1999 MAC -- NEEDS OLDER VERSIONS. in this day of easy information access, i found nothing stating this on any website, including the manufacturer.