This finally made my Philips CDRW400 series (pcrw464) external work! I believe you still need to get the Cable USB drivers from freecom and also posted here on driverguide.com. I tried updating the freecom drivers to no avail. I finally removed the freecom USB drivers, updated my registry with the reg file inside the .exe here (after installing adaptec easy-cd creator), rebooted and pointed the hardware recognition engine to the freecom USB driver location. WOW. I thought I had wasted $80 on the drive. It now works!