redstorm - 2:14 am on Jan 29, 2010 (gmt 0)

I want to know, if i can name same file under different folders. For example:
example.com/folder1/abc.html
example.com/folder2/abc.html
example.com/folder3/abc.html
is it legeal for search engine by having so many same "abc.html" urls?
I appreciate your help!