Currently Being ModeratedMay 16, 2012 3:12 PM (in response to keytarzan)
You can convert your MP3's in iTunes. In preferences change the import settings under general to AIFF 16 bit 48k. Then select the file in iTunes and from the advanced menu choose convert to AIF. When the conversion is complete drag the file out of iTunes and into a Finder window to store it outside of iTunes. The you can use the AiF in the Playback plugin.