How to change a music file so it is supported by my phone?

only some of the music i put on my phone works, it has a file name of 03 Ocean Avenue.m4a which is from itunes and the phones that dont work have a file name of 01 Shake It.m4p the only difference i see it a p instead of an a but when i tried renaming it to an a it doesnt work any more. any help appreciatedHow to change a music file so it is supported by my phone?Music from iTunes is DRM encrypted. You cannot directly play it beyond Apple environment. You have to remove the protection and convert the iTunes music to MP3. There are many programs that can do the trick, like Double Twist(Windows), iMovie(Mac) and TuneClone(Windows).



And I have been using TuneClone for quite a long time. It can convert iTunes protected AAC(M4P), M4A, M4B, protected WMA, etc. to MP3, WAV, unprotected WAV with high quality at fast speed via virtual CD burning. The output files will have no DRM restriction any more.



Below is its step by step user guide you can refer to:

http://www.tuneclone.com/guide.php