Is there any valid technical reason for browsers to handle media files in any way other than wrapping OS provided codecs? See http://weblogs.mozillazine.org/ro

Is there any valid technical reason for browsers to handle media files in any way other than wrapping OS provided codecs? See http://weblogs.mozillazine.org/roc/archives/2009/06/directshow_and.html http://weblogs.mozillazine.org/roc/archives/2009/06/directsh.... The philosophical reasons are even more important though.