Itunes/Ipod help

I have a chinese midterm speech tomorrow and my gf recorded my speech and some of the words that I have a hard time saying, in chinese. The files are a .wav and I added them to itunes and to my ipod, however, the ipod doesn't play them. It shows them in the library but it just skips to the next track (in the playlist) when I select them.

Do I need to change their file status or anything?

Thanks!

Change it to a mp3. Audacity should be able to do that. This also belongs in the tech forum.

I'm pretty sure iTunes can do that as well...
If you right click the song you can select "Convert selection to MP3"