ODD = Optical Disc Drive.
It looks like the second from the top drive bay will be fine for an ODD. If you wanted more then a next size up case is best. In parting I don't stack 2 ODDs on top of each other because they tend to cook and die too fast.
So I currently have a bit of a space issue.
I have the Corsair 350D micro atx case. I also have the H105 installed in the top. I currently have it orientated so that the tubes come down by the optical drives. This is because I will be getting a 980ti hybrid and will be mounting it in the rear 120mm fan position. If orientated the other way, the H105s tubes would not allow me to mount the hybrid's rad at the back and I do not wish to mount it in the front. I did have an optical drive installed that I had to remove when changing the H105's orientation. It is from this drive that I have observed that for a device to fit in either optical drive bay currently, it has to be = < 5 3/4 inches long. I spent a while looking into a bunch of optical drives (and even slim ones with adapters) but they all seem to be at least 6 inches long.
Being completely stumped I turn to you guys to see if you have any ideas on how to get this to work/what drive would fit. I really would like to keep everything compact and in my case so that I don't have the extra bulk of an external device.
If any optical drives do exist that would fit I would like them to be DVDRW or bluray.
I have linked a couple pictures of my computer so you can get an idea of the situation.