a very useful program if you need to convert data into ISO!
ISO Recorder is a free software that allows you to create and burn ISO images from CD or DVD discs, as well as to make disc-to-disc copies. It also serves to create ISO files from any folder on your system and give them the use you prefer. You can also master them from a file directory on-disk.
The software is free of charge, however, if you are happy with the program, you can make a donation to its developers.