What are some alternatives?
When comparing Brasero and PowerISO, you can also consider the following products
ImgBurn - What in the Heck is IMG Burn? We all need to copy discs from time to time.
UltraISO - CD image files are easily created with UltraISO.
CDBurnerXP - Free CD, DVD, ISO, HD-DVD and Blu-Ray burning software with multi-language interface. Everyone, even companies, can use it for free.
InfraRecorder - Welcome to the home of InfraRecorder on the internet! InfraRecorder is a free CD /DVD burning solution for Microsoft Windows.
Virtual CloneDrive - Virtual CloneDrive works and behaves just like a physical CD/DVD/Blu-ray drive, although it only exists virtually.
AnyBurn - AnyBurn is a light weight but professional free CD / DVD / Blu-ray burning software