I use this app as it's free, fast and does what it's supposed to..
Ashampoo Burning Studio Free - Free software downloads and software reviews - CNET Download.com
Nero is perfect for creation of data and multimedia disks. UltraISO complements Nero when it comes to editting boot disks. Daemon Tools and Alcohol 120% can compete with Nero in emulating and copying disks.
I would not forget about Microsoft Windows explorer, which also allows to create disks. : )
Nero all the way, although I prefer the bare essentials "Burning Rom", the rest of the bundle is rubbish I don't need.
I'm using InfraRecorder over here, it's a free and open-source alternative to all of the above recommendations.
It's a nice solution for most typical user requirements, and it feels quite similar to some of the earlier Nero builds.
Download page.