Links to software in poll:
http://www.nero.com/enu/index.html
http://www.roxio.com/
http://www.ashampoo.com/products/1810
http://www.cdburnerxp.se/
http://infrarecorder.org/
http://www.imgburn.com/
http://www.deepburner.com/
http://www.padus.com/
http://www.vso-software.fr/products/Blindw.../blindwrite.php
http://www.burnaware.com/
http://www.droppix.com/produit.php?produit=4
http://www.rmbsoft.com/avb.asp
http://www.oront.com/index.html
http://www.cheetahburner.com/

I've always been pleased with Nero, using Nero 7 at the moment. Never let me down, and never had failed burns.

I have got a copy of Alcohol 120% http://www.alcohol-soft.com/ but hardly ever use it.

nero 9 stripped down to burning only.

imgburn - no stripping needed
except for the sound effects...

Personally, I use ImgBurn. It's lightweight (almost 2 MB), portable (I can keep my settings). Once you get used to the interface, you can work fast with it because it's fast loading.
It's also the only freeware burner that doesn't have many bugs (I also tried CDBurnerXP, InfraRecorder, Ashampoo Burning Studio, Deep Burner, CDRTFE and others).

magic iso is a great program
but its not free

I burn ISO to CD/DVD in 9of10 cases, UltraISO is my favorite.
Only for burning Audio-CDs I use Nero6.

I stopped using Nero a couple of years ago. Using it feels as if you entered the store to buy some cigarettes, but instead you find circus, with jugglers
and magicians in there. Works soo slow...
I was looking on several free DVD Burners and ended up using Express Burn for a long time now. It's a simple drag&drop. And it's the fastest CD/DVD writing program I've used.

I love ImgBurn, since it in addition to being freeware and leightweigh, then also has so many great options like e.g. auto-changing the filesystem based on which type of disc your writing, auto-seting the write-speed per MID or disc/drive-type, accurate layer-break placement, on-the-fly audio decoding/writing, advanced options for configuring practically everything to anything! etc. etc.