Windows 7 has a Disk Burner just pop a CD / DVD in your DVD Burner and click twice on a ISO file and Windows 7 will Burn to Disk ... but sometimes you need more control, I have been using IMGBurn for years is a multi platform lightweight CD / DVD / HD DVD / Blu-ray burning application and supports a wide range of image file formats - including BIN, CUE, DI, DVD, GI, IMG, ISO, MDS, NRG and PDI and more. IMGBurn has no whistles and bells it just does exactly what its made to do and does it very well, whats more its Free, works with Windows 95, 98, Me, NT4, 2000, XP, 2003, Vista, 2008 and 7 (including all the 64-bit versions). If you use Wine, it should also run on Linux and other x86-based Unixes.
Link
http://www.imgburn.com/