UltraISO - CD image files are easily created with UltraISO.
PrimoCache - PrimoCache Overview - a supplementary software caching scheme to improve the system performance
WinCDEmu - WinCDEmu is an open-source CD/DVD/BD emulator.
SoftPerfect RAM Disk - SoftPerfect RAM Disk is a Windows application for creating computer drives entirely stored in memory for better performance and hard disk longevity.
DAEMON Tools - The most personal application for disc imaging yet.
Dataram RAMDisk - RAMDisk increases internet page speed, adds security, accelerates databases, reduces compile times, and controls what files and programs are stored into memory.