Daemon Tools 4.0.1 x64 allows you to mount CD or DVD images as a virtual drive. The program is free; it comes with adware BUT you can choose to install it without adware by unchecking "Daemon Tools Searchbar" at installation

The author says this 64-bit version contains a few bugfixes.

Dear Community, as promised, we released today the new X64-version of DaemonTools V4. It contains only small bugfixes, apart from that, the release notes from V4 32bit are valid here, too. We wish our users a nice weekend and much fun with this new release!

Program Information Category: Tools and Utilities Type: Free Version: 4.0.1 x64 Size: 1.65MB Works on: Windows Product page: here