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If your Macs DVD/CD drive is not working, its malfunctioning, creating screechy noise or if the drive is broken and makes angry noises when it spins up, the noise is becoming a problem when using your computer in class or if you want to disable it for any security purpose then here is the solution for removing or disabling it completely from your Mac.

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To disable DVD/CD drive in Mac OS X

1.Go to /System/Library/ by clicking on the Go in the top menu bar and then click the Go to folder and type /System/Library/ and click go.
2. Open Extensions folder and look for file IODVDStorageFamily.kext and IOCDStorageFamily.kext.
3. Create a new folder somewhere you can find it when you want to re-enable the CD/DVD in your Mac.
4. Name new folder as "Disable DVD drive" to remember.
5. Now move the IODVDStorageFamily.kext and IOCDStorageFamily.kext file from /System/Library/Extensions/ to the new folder "Disable DVD drive" if you can not move it due to any reason drag and drop it to new folder to copy it.After copying it simply delete it and send to trash.
6. Now reboot the computer and it will be gone.

To Re-Enable DVD/CD drive in Mac OS X

Simply Move both the .kext file ( IODVDStorageFamily.kext and IOCDStorageFamily.kext  ) back to "/System/Library/Extensions," and then reboot the computer to make the CD/DVD drive active again.
If you can not move it due to any permission issues.So, instead of moving, rename the extension to .kexta (converts the file from a package to a folder ), and then rename it back to .kext.


Tip: What to do to eject a stuck CD or DVD from the optical drive
Ejecting the stuck disc can usually be done in one of the following ways:
1. Restart the computer and after the chime press and hold the left mouse button untill the disc ejects.
2. Click on the Eject button in the menubar.
3. Press COMMAND-E.
4. Click the eject icon in the Finders sidebar.
5. If none of the above work try this:Open the Terminal from Utilities folder.At the prompt enter or paste the following:

/usr/bin/drutil eject

If this fails then try this:

Boot the computer into Single user mode.At the prompt enter the same command as used above.To restart the computer enter "reboot" at the prompt without quotes.

And finally if that all does not work look for a small mechanical eject hole on the edge of the DVD drive.Insert a Straightened paper-clip straight to the hole.and it will eject the drive tray.