Every time. But then you may wanna consider one that burns dual layer dvds. They're not THAT much more expensive and have the ability of burning onto dual layer discs holding twice as much.
My computer is a bit long in the tooth (6yrs old) and doesn't have much memory. I therefore couldn't install a dvd writer so I bought a cdrw-dvd combi drive (plays cd's and dvd's and also rewrites cd's) from CCL Online. It does exactly what it says on the tin. Try this link: http://www.cclonline.com/product-info.asp?prod uct_id=8041&category_id=119