Be mindful of the environment the server the HTML will end up on. If the server is *nix-ey (like linux/Sun etc...) filenames are case sensitive so if you make a link
Click here and the file you upload from WinBloat or Amiga is called MyFile.wav the link won't work. Same goes for links to other pages. Remember this when you start learning or your first projects will have lots of seemingly broken-for-no-reason links!
Also ".." means parent directory and "." means current, use forward slashes as delimiters, with no starting slash the ref references from where the HTML file is, so to reference a file in the directory above the referencing HTML you'd use
Click here