Question: can itunes convert m4a to mp3?
Answer: To convert files to MP3: Firstly, go to iTunes Preferences>General and click the 'Import Settings' button. Set 'Import Using' to 'MP3 Encoder' and use the next drop-down menu to choose your settings - you can choose 'Custom' and set the bitrate as suits you. Click OK, then OK again to close the Preferences.