The Macbook Air comes with a feature to allow you to use another computers DVD drive to install software, but for some reason it only works on Macbook Air. To enable this feature on other Mac computers, the following commands can be entered in Terminal:
defaults write com.apple.NetworkBrowser EnableODiskBrowsing -bool true
defaults write com.apple.NetworkBrowser ODSSupported -bool true
After the commands have been entered, reboot the computer and you will now have the option of Remote Disc in Finder.
Originally found at: http://www.bukisa.com/articles/265078_how-to-really-enable-dvd-drive-sharing-on-a-non-air-macbook
