... , if can’t find the symbol of USB ODD in “computer”, pls check whether the “USB controller” is in “Computer/ Control panel/System ... your computer, and then enter into CMOS, make “On Chip USB” set as "Enabled" in “CHIPSET FEATURES SETUP”or“INTEGRATED PERIPHERALS ... ”, then save and start computer, recheck whether the symbol of USB ODD have appeared. 2. When read and write CD-ROM ...