Overview

Those who are looking for disk image file extension can install DD. It is a replica of a hard disk drive which extension is .dd. Like other file formats, you can recognize the DD file by looking at its extension .dd. The utility creates disk images by commanding line interface in the system of UNIX and LINUX OS.

Learn More about the Extension

DD files are sometimes known as forensic dd image, so it is used to locate Linux hard disk data in Windows OS.

In Linux, DD utility uses specific commands for dd image file:

dd if=/dev/hdr of=mydisk.dd

if is an input file

/dev/hdr is a physical disk of Linux

of is an output file

The destination name is my disk.dd

dd if=/dev/hdr of=mydisk.dd bs=64836 conv=noerror,sync

The block size is bs

conv=noerror parameter let the command run continuously even if any read error is faced due to source drive.

sync If an error occurs then null fill the rest of the block

In Windows, DD utility uses the following command to create a dd disk image:

dd.exe if=\\.\PhysicalDrive0 of=d:\images\PhysicalDrive0.dd

This cmd will help to get a replicate of a source drive

You can read DD files in-

• Linux
• MS Windows

Users can rely on paid tools also. There is some free DD file supporting apps.