33Taking care of your CDs and DVDs• Keep your disk in its case when not in use to avoid scratches or otherdamage. Any kind of dirt or damage can affect the data on the disk, impairthe disk lens reader on the CD or DVD drive, or stop the computer fromsuccessfully reading the disk.• When handling disks, always hold them by the edges to avoid smudgesor fingerprints.• When cleaning disks, use a clean, dust-free cloth and wipe in a straight linefrom the center to the edge. Do not wipe in a circular motion.• Clean your CD or DVD drive periodically. You may refer to the Cleaning Kitfor instructions. Cleaning kits can be purchased in any computer orelectronics shop.Hard diskYour computer is pre-installed with a high-capacity Enhanced-IDE (E-IDE) harddisk.For instructions on how to upgrade or replace your hard disk, see:"Replacing the Veriton 3900Pro's hard disk" on page 60."Replacing the Veriton 5900Pro's hard disk" on page 63."Replacing the Veriton 6900Pro/7900Pro's hard disk" on page 65.
