Wav to Mp3 converter and free CD burner?

I have a lot of songs in Wave (*.wav) format. I need to convert it to MP3 and burn CD. I have Windows Vista and I don't need any Nero Burning room programs which is expensive and illegal if used free. So maybe you know some suggestions what to do to get CD of MP3 songs made from *.wav files? Some free converters and free CD burning programs?