how do i turn this 30 second clip into a 3min song by repeating it?

got a 30 second clip from my favorite songs chorus and i want to make a 3 minute mp3 file that just replays this 30 second chorus over and over and over and put it on a cd with my other songs.

so how can i do this?

thanks

Use Audacity. Create a new file, copy the 30 second clip and then repeat that as many times as you want and then export as MP3..