I am able to use the built-in CD and can load programs through the disc built into my Compaq computer. But I cannot play DVDs on the same disc player, and cannot load SD cards. If i insert an SD card and then check the Removable Disc I (where the SD is located) it shows the hour glass and locks up. Only removing the SD card will unlock it.
Try if the card reader is working or not. I doubt the card reader is corrupted. If working properly, try updating the driver for it.
Are you sure the ROM is CD/DVD ROM ? I couldn't be able to play any DVD if it is a simple CD ROM.