All CD Burners, DVD Burners, CD Drives, DVD Drivers, practically all Optical Drives and any other 5 1/2 inch Drives are exactly that, 5 1/2 inches wide and will fit in the 5 1/2 inch tray of your COmputer. Some are longer than others; but never by much; you will find a variation in weight of course though.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.