Apple iMac G3 (Original) - Manual (Page 32)

32 Chapter 2
Can’t eject disc.
m If file sharing is on and you are having trouble ejecting a disc, turn file sharing off in the
File Sharing control panel in the Control Panels folder, available in the Apple (
K) menu.
“This is not a Macintosh disk: Do you want to initialize it?” message appears.
m Make sure that the Foreign File Access extension is installed and turned on. Use the
Extensions Manager control panel in the Control Panels folder in the Apple (
K) menu to
turn it on, then restart your computer.
m Make sure the CD-ROM software is installed. (The CD-ROM software is already installed
on Macintosh computers that come with CD-ROM drives.) The easiest way to install
CD-ROM software is by reinstalling your system software. (See Chapter 5, “Reinstalling
Your Computer’s Software,” on page 53.) Restart your computer after reinstalling system
software.
m The disc may use a format that the Macintosh cannot recognize. Ask the disc’s
manufacturer for a disc that a Macintosh can recognize.
Computer ejects disc unexpectedly.
m Make sure the disc is lying flat in the tray and the disc label is facing up.
m The disc may need to be cleaned. (See the online documentation that came with your
computer.) If there are visible scratches on the shiny side of the disc, you may be able to
remove them with a CD-ROM disc polishing kit (available from your audio CD dealer). If
the scratches can’t be removed, you need to replace the disc.
m The disc may be damaged. Try another disc in the drive, and try the original disc in
another drive. If the original drive reads other discs or if the original disc also doesn’t
work in another drive, the disc is probably damaged. You need to replace it.
Problems Using ISO 9660 or High Sierra Discs
Files can’t be opened.
m Discs in the ISO 9660 and High Sierra disc formats have version numbers attached to file
names. Some application programs need these version numbers in order to work with
files. To make the version numbers available to programs on your computer, drag the
CD-ROM disc icon to the Trash. When the tray opens, hold down the Option key and
push the tray back in. Continue to hold down the Option key until the disc is mounted in
the drive. The program you are using should now be able to locate file names on that
CD-ROM disc.
Important If you’re using a small (8 cm) disc, make sure it’s centered within the tray’s
inner ring and the computer is absolutely level. An improperly seated small disc in your
computer may result in damage to the disc, the CD-ROM drive, or both.