my cd-drive reads the cd but can't play it

hey my cd-rom drives one is a AOPEN CRW5232/AAO PRO and the other is HL-DT-ST CD-ROM GCR-8523b my wc3FT was working fine and then one day i try to play it cds in the drive i open it and it opens thens it says i need to put the cd in the cd-rom so i try my otrher drive and it does the same thing it reads the cd it says FT in my computer but it can't open it can anyone help me with this problem thanx