For some reason I can't fathom now, when I made my catalog (holding 3 big internal drives worth of pictures) I did it by opening New Catalog, which I then named. I also deleted old LR2 catalogs. Sometimes when I open LR4 it does not find my catalog even though I set the dialog box to always open that catalog.
Now, I would much prefer to have that catalog renamed to what the LR4 default name would be, and place it in the default LR4 catalog folder structure. (I'm using Win7-64 bits). I want the catalog on my C: drive where LR4 would put it by default.
What is the default folder, and default name for the catalog and associated files? Would moving and renaming the folder and files work?