Disk drives won't work

Neither my dvd-rom nor my cd-r/rw drive work. Both say there is data on them but no icons/details show in view windows. Both say they are working fine in device manager. Backup to cd writer drive yesterday and each time computer said all files were copied and on the disks. Help please. Thank you.
Dan

computer: hp pavillion a376x windows xp service pack 3

Uninstall them and restart.