.IMG File

.img is Disc Image Data File

Features Description
File Extension .img
Format Binary
Category Disk Image

The .img file extension is used to denote various types of files across different domains. In this article, we will explore the different formats of .img files, their common uses, how to open them, and how to convert them to different formats.

1. Disc Image Data File

A disc image data file (.img) is an exact copy of a CD, DVD, or Blu-ray disc. It contains all the data, including the file system, boot sector, and file structure present on the original disc. This format is commonly used for creating backups, distributing software, and running virtual machines.

2. Grand Theft Auto Data File

In the context of the Grand Theft Auto (GTA) video game series, the .img file extension refers to files that store game data such as textures, models, audio, and other resources. These files are utilized by the game engine to render the game world. Modders often work with .img files to create custom content and modifications for GTA games.

3. Macintosh Disk Image

A Macintosh Disk Image (.img) is a file format commonly associated with Mac OS X and macOS. It serves as a container for storing the entire contents of a disk, such as a hard drive or optical media, in a single file. Mac users can mount these disk images as virtual disks and access their contents. Disk Utility, a built-in macOS application, can create, open, and convert Macintosh disk images.

4. Floppy Disk Image

A floppy disk image (.img) is a file that replicates the contents of a floppy disk. This format is commonly used for preserving data from obsolete floppy disks or for creating virtual floppy disks. Emulators and virtualization software often support .img files to simulate the use of floppy disks within a virtual environment.


The ERDAS IMAGINE software, widely used in the field of geospatial imaging, employs the .img file extension for its proprietary raster image format. ERDAS IMAGINE image files (.img) store geospatial data, including satellite imagery, aerial photographs, and digital elevation models. These files contain pixel values, spatial information, and other metadata related to the image.

6. Garmin Map File

Garmin GPS devices utilize .img files to store map data. These files contain detailed maps, points of interest, and other geographic information that can be used for navigation. To use Garmin map files, they need to be copied to the appropriate folder on the GPS device or loaded into Garmin-compatible software.

7. GEM Image

GEM (Graphical Environment Manager) was an early graphical user interface (GUI) for the Atari ST computer system. GEM used the .img file extension to represent bitmap images. These files stored graphics in a raster format and could be displayed or manipulated using GEM-compatible software or applications.

How to Open .img Files

Opening .img files depends on their respective formats and intended usage:

  • For disc image data files (.img) and Macintosh disk images, you can use software such as Daemon Tools (Windows), Alcohol 120% (Windows), or Apple Disk Utility (macOS) to mount the images as virtual drives and access their contents.
  • To open Grand Theft Auto (.img) files, you typically need to use specific modding tools designed for the particular GTA game you are working with. Tools like OpenIV (for GTA IV and GTA V) or IMG Tool (for older GTA games) can handle these files.
  • Garmin map files (.img) can be opened directly on compatible Garmin GPS devices. Alternatively, you can use Garmin software like BaseCamp or MapSource to view and manage these maps on your computer.
  • For ERDAS IMAGINE image files (.img), you will need the ERDAS IMAGINE software to open and work with them. This software provides advanced capabilities for processing, analyzing, and visualizing geospatial data.
  • GEM images (.img) can be opened using various image viewing software that supports the GEM format, such as XnView or Atari ST emulators like Steem or Hatari.
  • To open floppy disk images (.img), you can use emulator software like DOSBox or VirtualBox to simulate the presence of a floppy disk drive and access the image as if it were a physical disk.

How to Convert .img Files

To convert .img files between formats, you can utilize specific software tools. Here are some common conversion scenarios:

  • To convert disc image data files (.img) to other formats like ISO, you can use tools like PowerISO (Windows), Toast Titanium (macOS), or ImgBurn (cross-platform). These applications allow you to create, modify, and convert disc images.
  • To convert Macintosh disk images (.img) to other formats, such as ISO or DMG (Apple Disk Image), you can utilize the Apple Disk Utility or third-party tools like DMGConverter (macOS).
  • Conversion of Garmin map files (.img) can be achieved using software like MapConverter, which allows you to convert maps between different formats compatible with Garmin devices.
  • For ERDAS IMAGINE image files (.img), you can convert them to widely supported formats like TIFF, JPEG, or GeoTIFF using the Export or Save As functionality within the ERDAS IMAGINE software.

Remember to consult the specific documentation or official websites of the software tools mentioned for detailed instructions on using and converting .img files.

Overall, the .img file extension is versatile and serves different purposes depending on the context. Understanding the specific format and utilizing the appropriate tools will enable you to effectively work with and manage .img files in various scenarios.

Disk Image


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