Fixes issue U4-5925 GetMedia returning nothing

Removed the use of FromXElement that was only used by GetMedia.  The change introduced in commit f3f65043987ab73bc3b29c64e3453091853dea06 caused GetMedia to return nothing due to the introduction of the FromXElement method.
Merge pull request #587 from pgregorynz/7.2.1

Fixes issue U4-5925 GetMedia returning nothing