Devenic, would it be possible to have Qwix tag all ISOs it creates to remind the user what was used to create it. Right now there's really no way of telling how an ISO was made. I have ISOs dating back about a year and a half, and I can only assume I had made them with xISO. However, it would be cool if an application could return the title of the ISO creation program by reading this tag. I know extract-xiso puts a tag in the ISO. Perhaps you could follow their precedent and put a tag in the same position if possible.