One of the major advantages of getting MP3 format is the fact you only have 2 CD disks. The old testament on one, and new testament on the other. If you have a car that has a cd player with MP3 player ability, you only have to concern yourself with the 2 disks. Regular CD format would require the need of almost 60 disk to get the complete bible on them. What a difference! The two disks work perfectly in not only my cd player in the car, but also on my telephone. I have a Omnia 2 with 16 gigs of memory. The clarity and sound quality is excellent. This was an extremely good investment for it is everything they said it would be and more. I love the Lord and need to hear his word. A terrific buy for anyone looking to learn about our Lord!