I've encountered an odd issue with regards to playing mp3's on my phone (happened on both of my phones, Huawei G312 running ICS and ZTE n762 with Gingerbread). The odd song I transfer over will, just as it's about to end, jump back about 30 seconds and replay the remainder of the song. This just isn't a playback issue, the actual files are changing. For example, on my PC, the song is 4:28 seconds long, but on my phone, where it repeats a section, it's 5:37. I don't think it's the phone (as it's happened on two different phones, from different manufacturers, and with different SD cards), so I would assume it's a software issue. I'm using PowerAmp, and this is the only issue I've really had with it. I just don't see what PowerAmp could've done to mess the file up like this, but it's the only common denominator. It's not a big deal, as I just needed to transfer over the original song from my computer, I'm just wondering what would've caused this problem.