Great series! (so far). I got a copy of the lectures for Christmas and am a little over halfway through. I got intrigued by his mp3’s I took off the internet.
On thing you might consider is getting a cd player that will play MP3’s. Portable players have really come down in price and many of the newer CD players will play them. Even newer DVD players will play them, so if you have a DVD player, you might check it out.
If you can get a player that plays MP3’s, then all you need to do is download the files off the internet in a folder on your harddrive (like “My music” and then copy them as files to a CD. You will find all of Kreeft’s stuff fits on 2 CD’s