Panasonic CF-Y5 Reference Manual page 33

CD/DVD Drive
To clean disks
<For read-only disks>
Wipe disks with a dry, soft cloth from the center toward the edge.
If disks get very dirty, wipe with a moist, soft cloth from the center toward
the edge, then wipe again with a dry cloth to take up remaining moisture.
<For recordable/rewritable disks>
Use the Panasonic disk cleaner to clean these disks.
Do not use a cloth, CD cleaners or any other such cleaners under any circumstances.
How to hold a disk
Changing the Internal CD/DVD Drive Letter
In some cases, the drive letters for the CD/DVD drive or connected devices (SD Memory Card, external drives, etc.) may
change when the CD/DVD drive power is turned on or off.
We recommend that you change the drive letter before installing application software and allocate the drive letter for the
CD/DVD drive from the latter half of the alphabet to prevent these letters form changing.
A Log on to Windows as an administrator.
B Confirm whether the CD/DVD drive power is on.
If the drive power is off, turn it on.
C
Click [start] - [All Programs] - [Panasonic] - [Optical Disc Drive Letter-Setting Utility].
D
Click in [New drive letter], click the drive letter, and click [OK].
NOTE
If you have the Optical Disc Drive Letter-Setting Utility currently running while logged on in one account, another user
cannot start it up after switching the Fast User Switching function.
Even if you have set a new drive letter for the built-in CD/DVD drive, the drive letter may change if you insert an SD
Memory Card or a USB device after the power of the drive has been turned off.
33