ISOFS is an installable file system for OS/2 to access ISO rawfiles suitable for burning on CD. It allows transparent access to the contents of the raw file. Currently only Joliet filenames are supported but this may change in the future.
To learn more about it you may have a look into the documentation avaiable online here.
Get the WarpIn installation package V0.1.1here.
You need also the EMX runtime libraries fix 3
Get WarpIn from here. You need at least V0.9.4.