[QUOTE=jubjubbird;2530437]What SATA controller is it on (on your mobo)?
Some controllers can cause issues with optical drives.[/QUOTE]100% agreed.
EDIT: if this is the system in the signature, I strongly advise to run the system at stock speeds. Intel Sata controllers normally should be fine. But this is a very new chipset, so I’d check if there are newer drivers (from Intel) and also Bios updates (from the motherboard manufacturer) available.
Apart from that, the Samsung SH-S223C can’t scan at all since it does not have a Mediatek chipset.