I think it also depends on the sype of CD rom drive. I know sopme onw who told me hi laptop does NOT have enough power to read cd RW's. I can believe it. I mean who among us has created a "coaster". It's not like we purposely did anything wrong. I personally like using RW and I have noticed a difference in the quality of of the burn when I make a disk in warm weather as opposed to the colder weather. Which makes me wonder about the quality of cdrw two or three years later. Bsteph