I need a good virtual drive emulator. A few years ago I used Daemon Tools, and it worked great. Now the reviews I've seen say it's filled with adware and maybe even malware. Seems they've gone very bad (e.g. this site: http://download.cnet.com/Daemon-Tools-Pro/3000-2242_4-10744439.html#userReviews
Are there good alternatives? I only need 4 virtual DVD drives max, so I'm hoping I don't have to pay much ... or get it for free if possible.