Alcohol 52% vs ImDisk

Alcohol 52% creates virtual CD/DVD-ROM drives so users can play discs without the physical media. It supports up to 31 virtual drives and can mount optical images in formats including CCD, CUE, ISO, BWF, CDI, MDS, and NRG. The listed downloads are for Windows, excluding Windows 98 and ME. A free 15-day evaluation period is available, with capabilities limited only by the number of virtual drives available. The Free Edition is also listed at free and is marked not for business use. A paid single licence costs 27.00 USD once and includes lifetime free upgrades; online activation is required. The maker describes home users backing up game CDs and movie DVDs, as well as librarians and school administrators archiving recordable media. DVD titles protected with CSS cannot be backed up due to legal restrictions. Support options include manuals, FAQs, a support forum, and direct email contact. The privacy policy says users may choose to join the Bright Data network for some premium features and can turn that setting off in the app.

ImDisk is a free Windows virtual disk driver for creating disk volumes from image files or system memory. It can present virtual hard disk partitions, floppy drives, and CD/DVD drives, with support for raw images, VHD, VDI, VMDK, NRG, SDI, and BIN formats. The installer provides the imdisk.exe console tool, a Control Panel applet, and an Explorer command for mounting files. I/O requests can be passed to third-party image handlers or services on other computers over a network. API functions are available to C/C++, COM, and .NET applications, with wrapper libraries on NuGet. The current installer supports 32-bit and 64-bit Windows and lists x86, ia64, x64, arm32, and arm64 architectures. ImDisk is free to download and use; a voluntary usage fee is welcome. The maker says it receives maintenance fixes, but no new features are planned and its legacy design is not recommended for recent Windows versions.