DAEMON Tools - The most personal application for disc imaging yet.
Clonezilla - Clonezilla is a suite of software that's designed to allow you to back-up and image new hard drives with your data.
WinCDEmu - WinCDEmu is an open-source CD/DVD/BD emulator.
Macrium Reflect - Macrium Software - the creators of Macrium Reflect backup, imaging and cloning software.
UltraISO - CD image files are easily created with UltraISO.
AOMEI Backupper - AOMEI Backupper is a software created to help a person backup, restore, clone, and sync their entire Windows system.