Thank you for viewing. I am organizing my home as I plan to move. I am selling items that I don't use often. Data CD-RW 4 discs I purchased a set of 5, and used one. The remaining 4 discs are completely unused. Please consider purchasing if you understand that these have been stored at home for a long time and are opened. Storage capacity: 650MB Origin: Taiwan Company name: Hitachi Maxell, Ltd. For computers. 5-color disc & color case Stable recording characteristics from 1x to 4x speed - This product is a rewritable CD-RW disc exclusively for CD-RW writers that can repeatedly record and erase data. - It cannot be recorded on a music CD recorder. - Recorded discs can be read on CD-ROM/DVD-ROM drives that support multi-read and can read CD-RW. - Some CD writers, writing software, and CD-ROM drives may not be compatible.