All products AW1 COWON X9 COWON A5 AC1 COWON Z2 iAUDIO 10 COWON C2 COWON D3 COWON X7 COWON J3 COWON V5 iAUDIO E2 iAUDIO 9 COWON UM1 COWON D2+ COWON S9 COWON O2PMP iAUDIO U5 COWON Q5W COWON A3 iAUDIO 7 COWON D2 iAUDIO F2 iAUDIO T2 iAUDIO 6 COWON A2 iAUDIO U3 iAUDIO F1 iAUDIO M5 iAUDIO G2 iAUDIO X5 iAUDIO 5 iAUDIO G3 iAUDIO U2 iAUDIO M3 iAUDIO 4 CW300 CW200  View Article          COWON    iAUDIO Expert   22-10-2009 13:53:29     I want to delete all files in my COWON UM1. Format your USB memory stick to FAT32. After you format it you will loose all data in your device. It is recommended to back up data that you don’t want to loose.  Prev    How many can I add to favorites and Bookmark? COWON   2009/11/06   Next    My COWON UM1 is not recognized by my computer. COWON   2009/10/22          What's New   FAQ   Q&A   F/W S/W   Manuals   Product Guide