Forget about the MSI and read the reviews on this site about the LiteOn 411 & 811 as well as the NEC 2500A.
You'll soon find out that the NEC is the reigning king of writing quality but has a weakness in DVD-reading (damaged DVD's). The 411 and the 811 are good all-rounders in my opinion.
My personal recommendation would be the NEC2500A without the slightest hesitation.
Btw. Before posting questions like these on this forum, you should consider hitting the search button first. It's on the top left of your screen and can do amazing little things for you...