What formats are supported?
ISO Master can read .ISO files (ISO9660, Joliet, RockRidge, and El Torito), most .NRG files, and some single-track .MDF files; it can save only as .ISO.
You can use isomaster to:
-- add files to an image
-- extract files from an image
-- delete files from an image
Install iso master in Ubuntu
sudo aptitude install isomaster
This will complete the installation.
Using ISO Master
If you want to open ISO Master Go to Applications -> Sound & Video -> ISO Master
Once it opens you should see similar to the following screen
If you want to open .iso file go to File--->Open
Now you need to select .iso file and click on open
iso image file is reading in progress
Once iso image opens you should see similar to the following screen here you can add,extract,delete files to your iso image