Print the PDF that AlexPS has posted a link to. It clearly shows that from SOP (Start Of Production) up until 09/25/05 (or what ever the exact date was!) you have to have NAV to get the MP3 activated. After that date, all E60's are capable of MP3 play back...

 

Thanks for the replies so far. I have tried burning different brands of Cd's but to no avail.

My car was build in Dec.05.

Also do you think my software might not be up to date and could that be the factor causing this?