Choose the disk developed especially for your optical drive. HP optical disks are your assurance of disk-to-drive compatibility -- the key to secure protection of your valuable data. Select HP optical disks to enhance the reliability, performance, and longevity of your drive. Each HP optical disk is encased in a sturdy, poly-carbonate casing to inhibit both the attraction of dust particles and static buildup. Select this Hewlett Packard’s single 2.6GB Write-Once removable media for optical drives.