hi i have a problem with my phone or sd card. after i copy songs into my sd card using my computer, i tried to play the songs using my phone. i used the default music player and it says i have no songs. i thought there may be a problem with the music player so i went to "my files" and tried looking for the songs. however, it wasnt able to detect the songs either. so i connected my phone to my computer and found out that the songs were gone. i tried it for 3 times and all the results are the same. my songs get deleted/removed from my sd card for no apparent reason. pls help! p.s. i rooted my phone using the rooting guide here and this problem arose after rooting. there wasnt such a problem before.