How does one open the 2nd DVD-Rom on a Mac Pro, while using the 1st to install something?

Installing something in the 1st rom and want to look what’s on another DVD in background, so I need to open 2nd Rom but have no idea how? anyone?

Thats macs so simple that they don’t even have an eject button.

Onion said it best

anyway this should have your answer

http://support.apple.com/kb/HT2575

Computer Peripherals : How to Install a DVD-ROM Drive

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