Problems reading files

If you can't see the files on a disk:
You may be trying to use a disk that's formatted with Mac OS Extended (HFS Plus) format on a computer that has Mac OS 8 or earlier installed. To see all the files on the disk, you need to use the disk with a computer that has Mac OS 8.1 or later installed.

If you can't see your PC SCSI disk:
Mount the disk using the PC Exchange section of the File Exchange control panel.

Open the File Exchange control panel for me.

If the disk is unreadable:

•	If the disk is new and not yet formatted, you need to initialize the disk.
	WARNING: Initializing a disk erases all information on the disk.
•	The disk may have been formatted for use on a DOS- or Windows-based computer. Use the File Exchange control panel to open DOS or Windows files on your computer.
•	The disk may be too warm or cold to read. To warm a disk, set it on top of your monitor for a few minutes. To cool a disk, place it in a shady, cool place.
•	You may have a problem with your disk drive. Do this:
	1 Try using another disk in the disk drive. 2 Try using the original disk in another disk drive.
	If the second disk is also unreadable, or the original disk works in the other disk drive, your disk drive may need repair.

If the disk is damaged:
You need to test and repair the disk using a program such as Disk First Aid or Drive Setup.

If the disk can't be repaired:
You can initialize the disk.

WARNING: Initializing a disk erases all information on the disk. Before initializing your disk, recover all the information you can and copy it to another disk.

If a CD-ROM disc icon doesn't appear on the desktop:

•	Make sure that the disc label is facing up and the disc is centered in the tray.
•	Make sure the tray is closed all the way.
•	Make sure that the following extensions are in the Extensions folder (inside the System Folder):
	• Apple CD/DVD Driver • Foreign File Access • UDF Volume Access • High Sierra Access • ISO 9660 File Access • Audio CD Access • Apple Photo Access
	Use the Sherlock program to see if they are installed. Open Sherlock 2 for me.
	If these extensions are on your hard disk but not installed in the Extensions folder, move them there, then restart your computer.
	If you can't find them, you need to reinstall your system software.
•	If you installed the drive after you bought your computer, make sure the software that came with the drive is installed.
•	If you have SCSI devices attached to your computer, make sure you don't have a SCSI ID conflict.
•	Check the disc's format. The disc may use a format that your computer cannot recognize.
•	Restart your computer.
•	Start up your computer from the system software CD that came with the computer. If the disc icon does not appear, there may be a problem with your CD-ROM drive.

Problems with a CD-ROM drive

If the disc is vibrating in the drive:
The disc's weight may be slightly off-center. This will not damage the disc or your computer.

If you can't eject the disc:
Make sure the disc is not being shared. To turn off file sharing, use the File Sharing control panel.

Turn file sharing off for me.

Turn file sharing on for me.

Also make sure a program isn't open on the disc or files aren't in use on the disc.

If the drive tray won't open:

•	Select the disc icon, then open the File menu and choose Put Away. Or, drag the icon to the Trash.
	Note: If the Simple Finder is turned on, you need to turn it off (in the Finder's Preferences window, in the Edit menu) before you can choose Put Away. Turn off the Simple Finder for me
•	If iTunes is active, click the Eject button in the application's window.

If the drive tray won't open and the disc icon doesn't appear on the desktop:

•	Restart your computer. Immediately after you hear the startup sound, press the Open/Close button on your disc drive.
•	Turn off your computer. Insert a straightened paper clip into the small hole near the disc drive opening. Push gently.

If the computer ejects the disc unexpectedly:

•	Try reinserting the disc.
•	The disc may need to be cleaned.
•	The disc or the disc drive may be damaged. Do this:
	1 Try using another disc in the drive. 2 Try using the original disc in another drive.
	If the second disc is also unreadable, or the original disc works in the other disc drive, your disc drive may need repair.