• Computers, Computer Certification
• MDS file viewer software
• June 24, 2026

An MDS file is most commonly a Media Descriptor Sidecar file used with disc image software. It usually works together with a matching MDF file. The MDF file contains the actual copied data from a CD, DVD, game disc, software installer, or other optical disc, while the MDS file contains information about how that disc is structured. In other words, …