Open UltraISO and go to to select your MDF/MDS file. Navigate to the Tools menu and select Convert .
Now that you understand the "why" and the "how," you can liberate your disc image collection from proprietary formats and enjoy seamless emulation and burning for years to come. convert mdf mds to bin cue
and select "Convert image files" from the main menu. Open UltraISO and go to to select your MDF/MDS file