IBM CDRW/DVD Ultrabay 2000 COMBO4 24X/10X/24X/8X For Thinkpad Xtra IDE Get two drives in one with this high-speed, high-capacity read/write storage solution. Fast write speeds up to 24X Max to CD-R and up to 10X Max to CD-RW media make it perfect for backing up files or sharing information with others. Buffer underrun protection helps reduce writing errors, helping to save time and money. The drive adheres to DVD-Multi specification to provide playback compatibility across the formats endorsed by the DVD Forum (CD-ROM, CD-R and CD-RW, DVD-ROM, DVD-R, DVD-RW, DVD-RAM media).