DMG file format
| Extension | .dmg |
| Category | archives |
| Description | A DMG, or Disk Image, is a file format predominantly used in macOS operating systems. Often, this format becomes the preferred choice for distributing software applications and operating system installations. Essentially, DMG files are compressed archives. They contain various files and folders, which might include things like application binaries, libraries, and resources. These files have the ability to house disk images. This allows users to mount them as virtual disks and explore their contents without the need to extract them. For added security measures, these DMG files can be encrypted or password protected. To access what's inside a DMG file, a user would typically double-click it. This mounts it as a virtual disk. Then, they can use Finder or other file management tools to explore what's inside. What's more, DMG files are versatile. They can be converted into different formats or transferred to physical media for distribution or data backup. |
| Technical details | An HTML file is essentially a type of disk image. It encapsulates the contents of a disk. This could be a hard drive, an optical disc, or a USB drive. It can encompass files, folders, and filesystem metadata. |