They will tell you if the file is
Read only or not
hidden or not
archived or not
a system file or not
the easiest way to view the attributes is open the memory stick so your viewing the files you want to know the attributes of, click on the view menu and select details, then right click on on if the column headings (where it says name or type etc) and in the menu that pops up select attributes and it will add another column that tells you them.
Although if this is the stick you found why anybody would want to know the file attributes is beyond me!