Apple Macintosh Performa 6360 Series - Manual (Page 100)

You can’t save changes you make to information on a CD-ROM disc.
m A CD-ROM disc is a read-only medium. This means that information can
be read (retrieved) from it, but not written (stored) on it. You can save the
changed information on a hard disk or floppy disk.
Your CD-ROM disc is vibrating in the CD-ROM drive.
m Some CD-ROM disc labels have artwork that is noticeably thicker on one
side than the other and can cause the disc’s weight to be slightly off-center.
This uneven distribution of weight coupled with the high rotation speed of
your CD-ROM drive can cause some discs to wobble in the drive and make
your computer vibrate. The vibration damages neither the CD-ROM disc
nor the computer and affects very few CD-ROM discs. If you can feel or
hear that the CD-ROM disc is vibrating in the computer, you don’t need
to do anything special; continue to use the CD-ROM disc as you
normally would.
Note: If you use a CD-ROM disc with a removable (sticky) label, remove
the label before inserting the disc.
Problems using ISO 9660 or High Sierra discs
You cannot access files on a CD-ROM disc that uses the ISO 9660 or High Sierra format.
m Discs in the ISO 9660 and High Sierra 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, follow these instructions:
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.
m Make sure that Foreign File Access, ISO 9660 File Access, and High Sierra
File Access are present in the Extensions folder in the System Folder on
your hard disk.
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