I have worked with both Nero and Roxio. I don't know why but there are certain media that those programs do not like, so much so that they ruin the disk before throwing some cryptic error message. A friend recommended ImgBurn and by gum, it recorded on the same media without complaint. This was a nice bonus because I had the better part of three spools that the others had rejected. I had just about convinced myself that I was somehow unlucky enough to simply keep buying out of bad batches and the disks themselves were to blame. But there is something, whatever it is, that ImgBurn does that the others do not.
As well, I do not want all the bundled applications that have made Roxio and Nero unwieldy for me. If I want to edit sound, I use Audacity. Photos -- Paint.Net. Video, usually VirtualDub although that's not a complete solution by any means for video disk creation. My point is really that instead of being satisfied with a bunch of apps thrown together to bundle with a disk burner, I find better results by getting apps that specialize in the particular task.
And man, does ImgBurn ever specialize in burning disks! Knocks my socks off.
Glenn Caleval