[LAU] import .ogg in Ardour2?

[Josh Lawrence]

I'm trying to import some downloaded .ogg files into Ardour2, and it
won't let me.  I choose Add Existing Audio from the Session menu; my
.ogg files will not show up unless I choose the All files option, and
then it says that Ardour can not use one or more of the selected
files.  I'm sure I'm doing something stupid, but a Google searched
yielded nothing.  Can someone help?

-- 
Josh Lawrence
http://www.hardbop200.com