How can I make my own mp3s? Examples: messages for/from my friends. I'm not asking how to rip a CD, but I am asking how I can make one from scratch.

Thanks for any help.

.wav's might be more appropriate for the uses you are describing. For that, you can use Windows' build-in Sound Recorder (assuming you have a mic). Start > (All) Programs > Accessories > Entertainment > Sound Recorder. If it's not there, use Start > Run > sndrec32

download wavepad