Brand new, unopened! For those who say, "Do it on CD, especially now!" please take a look! Specifically for high-speed writers, it supports 4x to 10x speeds. The capacity is 700MB. This is a "rewritable" disc that allows you to record and erase repeatedly. A slim 5mm case is used, considering space and resource conservation. A set of 5 discs and color cases in 5 mixed colors is included.