Apple Power Macintosh 4400 - Manual (Page 26)

4 Close the tray by gently pushing it in or by pressing the Open/Close button.
In a few moments, an icon for the disc appears on your screen.
For more information about working with a CD-ROM disc or other CD, see
the “CD-ROM Discs” topic area of Macintosh Guide, available in the
Guide (h) menu. For instructions on using Macintosh Guide, see Chapter 2
of this manual.
CD-ROM disc vibration
Your CD-ROM drive reads CD-ROM discs very quickly, but because of the
high rotation speed of the drive, some CD-ROM discs can wobble in it and
cause the computer to vibrate. This vibration affects very few CD-ROM discs
and does not damage your computer or the CD-ROM disc itself, but you
should be aware of the vibration in case it occurs.
What causes the vibration? Some CD-ROM disc labels have artwork on them
that can cause the CD-ROM disc’s weight to be slightly off-center. For
example, the label (or “paint”) on the CD-ROM disc may be noticeably
thicker on one side than the other. A slightly off-center CD-ROM disc
spinning in the drive can wobble and cause your computer to vibrate.
26 Chapter 1