"One such company is Liteon, they've got a line of portable optical DVDRW drives called the EZ-DUB. These drives feature a standard sized, fully featured, optical drive inside of an external enclosure, but what makes these special is the addition of two touch sensitive buttons labeled 'File and 'Dub' to make common functions easily accessible to the end user. Is the EZ-DUB worth your money, are the extra features worth it? "