On my Macbook, I find that I am unable to convert AAC files to MP3 to copy to a USB stick to use with my car radio. I have the same tracks on my iMac which I am able to convert. So obviously I use my iMac. But I cannot understand why I cannot do the same on my Macbook.
I know that iTunes store purchases cannot be converted unless they are in iTunes Plus format
Lionel Ogden 