PowerISO - PowerISO is a virtual drive that allows users to encode, burn, mount, and even encrypt CDs, DVDs, and BDs. The software can be downloaded from many platforms and sites online.
WinCDEmu - WinCDEmu is an open-source CD/DVD/BD emulator.
DAEMON Tools - The most personal application for disc imaging yet.
Virtual CloneDrive - Virtual CloneDrive works and behaves just like a physical CD/DVD/Blu-ray drive, although it only exists virtually.
ImgBurn - What in the Heck is IMG Burn? We all need to copy discs from time to time.
MagicISO - MagicISO is a powerful CD/DVD image file creating/editing/extracting tool.