This CD-RW/DVD-ROM drive is designed to read DVD-ROM discs as well as CD-ROM, CD-R, DVD-RAM discs, providing users with backwards compatibility in their ProLiant environment. The drive is offered in both half height and slim line form factors to support most ProLiant DL, ML and hp tc servers. (NOTE: Software support is required for writing to CD-R and CD-RW media. For Microsoft® operating systems, this is available by using Roxio Easy CD Creator. For other operating systems, an operating system-specific software utility is required for writing to media.)