What a coincidence! I came onto the forum today to tell you all about adding a 2nd DVD drive to my 2007 Mac Pro !
Anyway what you need to do to eject the 2nd drive (and in fact what should be done by everyone anyway) is to add the EJECT menu !! To do this open your route drive - Open SYSTEM >-- LIBRARY >-- CORESERVICES >-- MENU EXTRAS then double click on "eject.menu". Once added this will add another icon in the top right corner of the screen. Click on this and you get the option to eject the DVD drive. If you have two drives it lists BOTH of them and you just select which one to eject.
Anyway I collected a Pioneer DVR- 215 today instead of a 115 ! DOH!! So I decided to investigate fitting a SATA DVD drive to the Mac Pro.
This is how you do it .....
1) Open your mac pro
2) Remove HD1, HD2, both memory risers, PCI-E card 1 and the optical drive caddy
3) Unscrew the little black screw in the corner of the front fan assembly
4) Remove the four screws in the memory riser hole!
5) Push the memory riser bracket to the back of the computer and rotate the metal cover that covers the two processors by about 20 degrees. (With the computer sat so that you are looking at the bottom of it turn it carefully clock wise.
6) Once the cover is removed slide a PCI card blanking plate (or as I do the little plate that holds your PCI-E cards in place) between the bottom of the front fan assembly and the bottom of the case (from the same position as described above!) and lever the front fan assembly up carefully and slowly whilst pulling carefully from the other side too.
You now have access to the TWO spare SATA sockets on the motherboard
7) Slide two SATA cables through the hole where the existing cables run into the optical drive bay. Get two SATA cables with the 90 degree ends on them so that they do not rise too far above the motherboard. Push them in and feed them through the hole. (I am telling you to use two cables because they cost 50p/$1 each or less and if you fit them now they are there for next year or when ever you need them to upgrade to blue-ray or similar!).
8) Fit a standard 4 pin power plug to 2 x SATA power adapter to the power plug that is NOT at the end of the cable.
9) Refit the fan assembly, processors cover, screws, memory risers, graphics card/PCI-E cards, hard drives etc
You should be back to about the place you started now but with the extra cables in the optical bay....
The optical bay bracket contains 4 spare screws ready to fit to your new drive
10) Remove the front of the drive tray by pulling it off from the bottom after opening it (you need to push a straightened out paper clip into the small hole at the front till it opens)
11) Fit the drive into the bracket using the four screws.
12) Fit either SATA cable and either power cable into the drive.
You can now restart your computer and the DVD should just work without any further todo!
When you take your Mac pro apart it will be absolutely full of dust DO NOT be tempted to use a hoover to remove the dust as the static can destroy it. Just use an air duster or similar.
Hope this helps. I bought a DVR-215BK (the BK means black) it works fine.
******** I will be fitting an LG blu-ray multi drive in the next few weeks and will let you all know how it goes ********