text: On WMP, click on tools, then options.  In Options, click the "Rip Music" tab, click on the "format" drop drown box under rip settings and select mp3.  From now on, all your music will be ripped and saved as mp3 format.  Depending on what type of phone you have, In order to copy mp3 to it, you might need a different software for that.  In addition, you might need to compress the mp3 files so that a few songs will take up all the phone's memory.