Ignition is a free software that can organize files for burning on CD/DVD. If you have lots of files that you want to burn on discs, then this cd burning optimizer software will tell you how should you arrange the files so that you use least possible discs. This comes really handy in optimal utilization of space on disks.
To get optimum arrangement of files on discs, you start with telling Ignition about all the files and folders that you want to burn. Then you specify disk capacity. Ignition can support CDs, DVD, and even dual layer DVDs.
After that, Ignition will tell you the best possible arrangement for those files on your selected media type. It can create separate folder for each disc, and copy files there so that you can directly burn the folder to disc. It can also create a text file that creates optimized list of contents of each disc.
Ignition can also create ISO files and burn discs, but it needs a paid disc burner for that. Instead, you can use it to find how to arrange files on disc, and then burn disc with some free cd/dvd burner.
Ignition is easy to use, completely free, and very useful.