Find the Physical Location of an attachment

Hi,

One of the user's has attached a 'Test Document' in FB03/FB02 transaction. When I try to view the document (word document), it shows up. I need to know where this particular document is PHYSICALLY stored in SAP.

I tried to debug and got some indirect references, but I could not find a place where exactly this document is stored in SAP/UNIX. Even finding out a UNIX path (if it is being stored in UNIX and called by reference) would be helpful.