D2V File

What are D2V files and how to open them

Are you having problems opening a D2V file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your D2V files.

What is a D2V file?

A .D2V file is a DGIndex Project file.

DGIndex Project files serve as index listings for MPEG-1 or MPEG-2 video streams. They are created by the DGIndex program, part of the DGMPGDec suite, to record where every frame (especially I-frames) is located within the video. These listings help other tools like the DGDecode Avisynth plugin to provide frame-accurate access, so that each frame can be quickly located and used.

These project files are generated from input video sources such as DVD VOBs, transport streams, or standalone MPEG files. DGIndex analyzes the stream, captures information like frame position, GOP boundaries, aspect ratio, frame rate, and user settings such as cropping or field operation, then saves all of this into the project file. Downstream tools load the project file to guide seeking and decoding according to those settings, ensuring consistency between previewing and output.

Every file of this type starts with a known signature string to uniquely identify it. At byte offset 0, the ASCII string "DGIndexProjectFile" appears, matching the expected signature for a DGIndex Project File.

How to open D2V files

Important: Different programs may use files with the D2V file extension for different purposes, so unless you are sure which format your D2V file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested ten different D2V openers which you will find listed below.

Last updated: September 21, 2026

Various apps that use files with this extension

These apps are known to open certain types of D2V files. Remember, different programs may use D2V files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about D2V file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.