Crop out the section you want ( of the song ) using Audacity , it is free.. Convert this mp3 file to mp4a or qcp . Create a folder on your memory card under music as 100mpc.1 . Paste any of the converted files into the folder , and there you go.. They will show up under your ringtone selections.
Guest just drag them on the computer
I have an memory card that comes from my phone and I want to put the songs from my memory card onto my computer