So, I go to look up how to pronounce álfr / álfur at
http://www.forvo.com/languages-pronunciations/is/alphabetically/page-11/
 
and the lady there pronounces it with a "sh" sound at the end instead of an r... I ran into the same thing with a number of other words.  Does anyone have any idea what is going on here?  It doesn't seem to be consistent.

-Sygyrd