Yes, I can't do anything without a sample. It would also be helpful to know what system this game is for. I have looked at files from the Wii version and they are not Ogg Vorbis at all, but it also generated a different error message.
Here is a sample of the file after renaming the extracted file to .RIFX
http://www.mediafire.com/?udmmw3hqfc3d81o
Also, using a different version of ww2ogg the files do convert to .OGG but the don't work and during conversion the CMD comes up with the message seen in this screengrab: http://gyazo.com/1cc8c531fd09e7bb15519911e41ca26b