When you purchase a conference on CD you will receive the disc through the mail, allowing you to listen to presentations and view speakers' slides at the same time on your personal computer, or listen to the audio files only on your CD player (as long as it plays MP3 files). In addition, as soon as you have received an email confirmation of your order you will be able to download the audio files and copy them to your MP3 player. You can View The Laing & Buisson Conferences website for information.