A couple of days ago, I asked Twitter followers for a recommendation for rm-to-mp3 converter software I can use on some old radio audio in my archives. I got several suggestions, but none of them were free. Then my KTRS colleague Ian Geisz said I might not need software -- there was probably a website that offered that service.
Sure enough, he found Zamzar, which does everything I needed. It has an up-sell option for more services, but I was able to convert those Real Audio files to mp3 format with no problem. It also converts pretty much every other audio and video format. If you need a converter, I recommend it.