Avanti permits mounting and using real OpenVMS and Tru64 UNIX CDs and DVDs. However, better performance can be obtained by creating an ISO image of these devices. I/O on virtual CDs and DVDs is very fast, speeding up installations and data access.
ImgBurn, available at http://www.imgburn.com/, has proven a good tool to create Tru64 UNIX and VMS ISO images.