What else does a right click show - a Properties option? If it does and it if it then leads to Volume then Populate>Properties, you might be able to assign a drive letter.
Then, at a Command Prompt type
attrib x:\*.* -h
where X is the drive letter, and hit Enter. That should unhide all the files then run the DIR command to see the contents. You could then create a folder in My Documents and copy all the files you want into that.
Personally, once I could see the name if that hidden .inf file, I would delete it.