This is the program that installs the driver and sony cd extreme(This is what you want) If you already have installed the program remove it, also disconnect your spressa. install the software reboot your machine and then connect your sressa and power on. I believe this also has describe for the mac. note if your machine freezes during a burn 1.disconnect the spressa from your machine 2.turn it off 3. reboot your machine. If you dont some really irritating stuff may happen and you will have to start from scratch. This is the only way to install the drivers correctly. believe me I tried everything else up here. this program is right off of the spressa cd.