Old sound files still download, new ones wont

[getyadogsoffm]

Like the title says, any sound files I've added before this week work and download fine for everyone. However sounds I've recently added don't download and give this error
LC ULib ERROR] Received invalid sound.

This is a screenshot of where my files are: [url]http://i.imgur.com/dhmiXq9.png[/url]
-note there are no subfolders beyond what you see.

This is the code regarding the sound files in my resources.lua file in the lua/autorun/server folder.

--SOUNDS
resource.AddFile("sound/cotton_eyed_joe.mp3")
resource.AddFile("sound/guile.mp3")
resource.AddFile("sound/hoverboard.mp3")
resource.AddFile("sound/techno1.mp3")
resource.AddFile("sound/leroy.mp3")
resource.AddFile("sound/zelda_theme.mp3")
resource.AddFile("sound/fun/dogs1.mp3")
resource.AddFile("sound/fun/missed.wav")
resource.AddFile("sound/fun/armedforces.wav")
resource.AddFile("sound/fun/jaws.wav")
resource.AddFile("sound/fun/assumptionsong.mp3")
resource.AddFile("sound/fun/macgyver.mp3")
resource.AddFile("sound/spintothemoon.mp3")
resource.AddFile("sound/phredluciano.mp3")

The only 2 sounds that don't work are missed.wav and armedforces.wav. These files were originally mp3 files, however those mp3 versions didn't work either. My server host is nfo, and the files are websynced. Any help is appreciated