don't buy it

Now I have been using the drive for more than a year. It is a terrible product: I have wasted many blank CDROMs. Buffer overrun problem is one of the major reasons. To avoid it (and it is not guaranteed!) you have to:
1. not using USB hub for the connection. you need to have a dedicated line for the drive only
2. disconnect from the Internet, and close up other programs
then you can start copying, hoping everything goes smoothly. By the way, you better to do "test mode" first, which makes the whole CD copying procedure unbearably long.
Don't buy it; it does not worth the money. I myself will never buy from Iomega in my life.