Turn on your computer and connect to the Internet. Open iTunes by clicking on the icon in your toolbar.
Insert the CD that contains the music you want to appear on your mixed CD. The track names will automatically appear.
Click on the "Yes" tab when "Would you like to import the album [CD Name] into your iTunes library?" appears in a box in the center of the screen.
Repeat the previous two steps for any other albums containing songs you want on your mix CD.
Click on "File" at the top of the screen. Select "New Playlist" from the drop-down menu.
Type a name for your playlist in the box that has "Untitled Playlist" written in it.
Click on "Music" at the top of the left column. Double-click on an album you just copied onto iTunes. Drag the songs you want from it into your playlist. Repeat until all the songs you want on the CD are in the playlist.
Insert a blank CD into the computer's disk drive. Click on the "Burn Disk" tab in the bottom right of the screen.