File Type 1 Media Disc Image File IconMedia Disc Image File
File Format Standard (developed by Alcohol Software)
Usage Open manually
Popularity ★ ★ ★ ★ ★  Popular

An MDF file is a disc image created with a disc authoring utility. It contains the exact contents of CD or DVD and can be used to make multiple copies of discs.

MDF files are often created by Alcohol 120% software, but they may be opened by several other disc authoring programs as well.

Info About Alcohol Software Alcohol 120%

Alcohol 120% is a CD and DVD disc burning program for Windows. It is commonly used to create copies and backups of discs or to store CDs as disc images on your computer. The program includes a pre-mastering function and supports Blu-ray discs. Alcohol 120% has many applications, including home, school, and business use.

Open With

IconAlcohol 120

IconCyberlink PowerDVD


Published August 10, 2009
File Type 2 SQL Server Database IconSQL Server Database
File Format Proprietary (Microsoft)
Usage Open manually
Popularity ★ ★ ★ ★ ☆  Common

Primary database file format used by Microsoft SQL Server, an enterprise-level database program; used for database files installed with SQL Server and related add-ons; custom MDF files may also be created by the user.

Open With

IconMicrosoft SQL Server

IconMicrosoft Visual Studio

IconAryson SQL Database Recovery

Published 2007
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Information from the PC File Extensions Reference