.MD1 File Extension

GEAR CD Disc Image

Developer GEAR Software
3.5  |  4 Votes

What is an MD1 file?

An MD1 file is a CD-ROM Mode 1 (MD1) disc image created by GEAR Software GEAR PRO disc-burning software. It contains a copy of a CD saved in the Mode 1 layout, which includes tracks subdivided into blocks containing header information, and 2048 bytes of data per sector. GEAR PRO users typically save data CD images as MD1 files.

More Information

GEAR PRO allows you to manage CD (audio and data), DVD, and Blu-ray images, which includes burning and duplicating discs. When extracting a disc image from a CD, you can save it as an MD1 file. The MD1 format supports any CD-ROM Mode 1 compatible CD image, which includes ISO/Joliet, ISO, ISO/UDF, UDF, Apple HFS, and Unix Native.

How to open an MD1 file

You can open an MD1 file with GEAR Software GEAR PRO (Windows) and EZB Systems UltraISO (Windows). To open an MD1 file with GEAR PRO to burn to a CD, follow these steps:

  1. Select Open external physical image in the GEAR Project panel
  2. Click Open
  3. Select Open physical image
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Programs that open MD1 files


Alcohol Disk Image Segment 2

Developer Alcohol Software
3.0  |  4 Votes

The second segment of a CD or DVD disc image copied by Alcohol 120% software; part of a sequence of disc image segments (preceded by .MD0, followed by .MD2, etc.); must be joined with the other segments to retrieve the complete disc image.

More Information

MD1 files are often saved with a .MDF file or a .MDS file, which defines the tracks and data structure used by the disc.

Programs that open or reference MD1 files

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MISO-J (to join the segments)

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