Hi friends! I have a CD-RW drive and a DVD-RAM drive.There are some files written by CD-RW which the CD-RW copies but DVD-RAM doesn't and shows "Cyclic Reduntary Check" error.Why is this so? 
?Pls help!!!
?Pls help!!!
CD-RW 'OK' but DVD-RAM 'CRC' ?????
Which company's CD-RW & DVD-RAM drive r u using??
Well CD-RW is of LG and DVD-RAM of Sony
Hey!! answer me!!!
there can be many thing... your PSU is not providing with the adequate power to both drives.. just disconnect extra hardware from the system and try again.. if then also problem persists then take your DVD-RW(RAM) drive to the service station..
Before taking it to service center just flash the dvd rw drive's firmware.sud solve ur problem.Also check if master slave jumper setting r ok.