The sensor in the ROM might be damaged. The drive is shown because all other hardware of the ROM is fine. You will have to get a new one or connect this one on an another PC, see if it works. All the best.
Mine was working at first,but then I opened it and it doesn't want to close again,the indicator lamp keeps blinking when I try to force it close.It can't read coz it can't stay closed..what should I do?