Umm, you could always make your own. Like if you have an MP3, you can record your voice onto it, then put it on your computer, and then loop (let it play over and over, otherwise known as Repeat, but I say loop for I am used to the CoolEdit program where you Loop a song/whatever, not Repeat) whatever it was that you were trying to teach the bird. Or you can go onto YouTube and if you have the CoolEdit program, you can record whatever you wanted the bird to learn, and Loop that. I doubt it if you have that program though. It is for music making/editing (for a keyboard/whatever other type of instrument you decide to use and make. But it works wonders for Techno on the keyboard!!!) and it is quite expensive....
The only thing I can recommend is the MP3 record thing I listed above and hope whatever playback music program that you have (be it Windows Media Player, etc.) has a Loop/Repeat button programmed into it. If not...I really don't know...
Maybe you can record on your cell phone? But I don't know how you would get that to the computer to repeat over and over.
Oh, and also, if whatever playback program you use DOESN'T have a Loop/Repeat button, you can always have whatever things you wanted your bird to learn and burn it onto a CD, and stick it in the CD player. Those FOR SURE have repeat buttons. You can repeat just one track, or the whole CD! I suggest just the one track, so the bird doesn't get confused, and is able to learn things one step at a time.
Hopefully I helped a bit...
Ash nazg durbatulūk, ash nazg gimbatul
Ash nazg thrakatulūk agh burzum-ishi krimpatul.