IsoCreator

IsoCreator generates ISO image files from any specified directory with all containing files and subdirectories. This is a straightforward and simple-to-use software application that creates ISO 9660 Joliet CD images, which can be later burned to the disk or mounted as virtual disk drives. It can also create ISOs from virtual files.
Installing this tool is a speedy job that shouldn't give you any trouble. As far as the interface is concerned, IsoCreator opts for a small window with a plain and simple structure, which shows all options available.

Easily create ISO images from any folder

You can get started by indicating the output destination and file name of the new ISO image, after which you can customize the volume name. Once you point to the the directory with all the contents you want to compile into the ISO file, you can start the entire procedure with one click.
This task doesn't take a long time, depending on the size of the specified folder, and a confirmation message is shown at the end to let you know if it was a success or failure.

Performance results and observations

We haven't come across any stability issues in our tests, thanks to the fact that the software tool didn't freeze, crash or prompt error messages. It carried out tasks rapidly while remaining light on system resources consumption.
On the other hand, it doesn't contain additional customization settings, such as picking files and folders from different locations to write into the same ISO. We must also take into account that it hasn't been updated for a long time.

Conclusion

To wrap it up, IsoCreator offers a very simple method for putting together ISO images from any given directory, and it can be seamlessly handled by any kind of users, even those inexperienced with ISO creating utilities.