ISO Master is a program that specializes in creating and modifying
ISO files (ISO images). It can read .ISO files (ISO9660, Joliet,
RockRidge, and El Torito), most .NRG (Nero) files, and some
single-track .MDF files...
AcetoneISO is a program that is specifically made for mounting and
managing image files, but it can do a lot of other things as well.
It has a goal of being simple, intuitive and stable. Written in Qt
4, this software is meant for all those people looking for a sort
of Daemon Tools for Linux."