I had an another hard disc of 500GBs installed where I wish to place all my photographs and video's. I moved two projects to it and I wish to change their titles but I am worried that this may mean that I will corupt them or that the softwear will not like it.
They are the normal Pinnacle files one blue with a gold 10 with the title, "My Movie 1.stx and a file that looks like a grey box that I assume goes with it called"My Movie 1"
I would like to cal that file "Julia" so could anyone tell me if I can change the names and if so how?

Just 'right click' with your mouse on the file you wish to rename, in the variety of options that come up, you will find rename among them. Click, back delete and type in your new name.

Regards Brian