I have four production drives, so when I open Sonar it shows me my last session, but I save to two drives after I finish with the song for the day. I'd like to always see the drive location of each version on the File recent projects list, so when I open Sonar so I can quickly choose the version that exists on my RAID drive. A couple times I've found myself mixing and thought my machine was really slow, only to realize I opened the session on the wrong drive. 

That would be great!

Adam Miner
...I save to two drives after I finish with the song for the day...

 
Instead of saving the secondary copy from Sonar, why not just use Windows Explorer to drag and drop the working copy of the project to the backup drive. It's far less confusing when you stick to a single place for opening projects.

I wrote a tool which show full paths. It was written for 64bit SONAR but may work with 32bit. If you want a copy download it from here https://drive.google.com/open?id=0B-HI4FV99Vq6cXY0RE9lSzRfTnM