Convert MDF to BIN

A disc-image application, virtual drive, or burning utility may require BIN/CUE instead of MDF/MDS for mounting, burning, or archival storage. The conversion is useful when the destination cannot open Alcohol's image format, but the original MDF/MDS files should be retained until the replacement image has been tested.

What the MDF format is

MDF is a proprietary optical-disc image format associated with Alcohol 120% and Alcohol 52%. The .mdf file normally contains the disc data, while the matching .mds file describes tracks, sessions, layer breaks, sector layout, and other information required to reproduce some discs accurately.

MDF/MDS images can represent CDs, DVDs, mixed-mode discs, audio tracks, and some copy-protected or multisession media. Keep both files together and open the .mds file when software asks for the image descriptor. A Microsoft SQL Server .mdf database file is unrelated and cannot be converted into an optical-disc image.

What the BIN format is

For optical media, BIN is usually a raw image accompanied by a small .cue cue sheet. The BIN stores sector data; the CUE records the filename, track boundaries, offsets, and track modes. A BIN without its CUE may contain the disc data but can lose usable track information, particularly for audio and mixed-mode discs.

BIN/CUE is accepted by many burning programs, virtual-drive applications, emulators, and archival tools. It is not a compression format and is not automatically smaller than MDF/MDS. BIN is a generic extension, so support varies: some programs handle only CD-style BIN/CUE images, while others also accept DVD or special raw-sector layouts.

How to convert the image

Direct conversion with UltraISO

1. Copy the .mdf and matching .mds files to the same folder, then make a backup.
2. In UltraISO, open the descriptor through File → Open and select the .mds file when possible. If the program accepts only the data file, open the .mdf file and verify that the tracks are displayed correctly.
3. Use Tools → Convert or the image-conversion command supplied by your UltraISO version.
4. Select BIN/CUE as the destination, choose an output folder, and start the conversion.
5. Confirm that both files were created. If the CUE references a different BIN filename, edit the first FILE line in the CUE or rename the BIN to match it.
6. Mount or burn the CUE file, not just the BIN, and check the track count, audio playback, and accessible data.

UltraISO is a practical Windows option for direct MDF/MDS import and BIN/CUE export. Its trial restrictions and supported output formats can vary by version; a licensed copy may be required for large images or conversion features.

Conversion with AnyBurn or PowerISO

AnyBurn and PowerISO also provide image-conversion functions in versions that list MDF/MDS as an input and BIN/CUE as an output. Open the program's image converter, select the .mds descriptor as the source when offered, choose BIN/CUE, select a destination, and start the operation. Check the product's current format list before installation because format support differs between releases.

Read back a mounted image

Use this fallback when a direct converter cannot parse the MDF/MDS structure:

1. Install a reputable virtual-drive application such as Virtual CloneDrive on Windows, then mount the .mds file. The descriptor should select the associated MDF data automatically.
2. Open ImgBurn and choose Create image file from disc.
3. Select the mounted virtual optical drive as the source and choose BIN as the output type if that ImgBurn release offers it. Enable creation of a CUE sheet when the option is available.
4. Save the output, then open the generated CUE in a compatible mounting or burning program.

This method reads the virtual drive as if it were a physical disc. It can work around a parser incompatibility, but it cannot preserve subchannel data, intentional read errors, protection behavior, or other information that the virtual-drive software does not expose. Use the official ImgBurn download and inspect installer choices, because third-party download sites may bundle unwanted software.

Compatibility and quality limits

Converting MDF/MDS to BIN/CUE changes the container and track description; it does not repair bad sectors, decrypt protected content, or guarantee preservation of copy-protection metadata. An MDS-to-CUE conversion may also simplify layer-break, subchannel, or multisession information. For protected or unusual discs, keep the original MDF/MDS and use software that supports the original format instead of treating BIN/CUE as an exact replacement.

ISO is usually more portable for a single data disc, but it cannot accurately represent separate audio tracks, mixed-mode layouts, many multisession structures, or some raw-sector data. Use BIN/CUE when the target software requires it or when those track structures must remain available.

Online conversion is generally unsuitable: MDF/MDS images can be several gigabytes, many services do not parse the descriptor correctly, and uploading licensed or protected disc content creates privacy and rights concerns. A local desktop converter is the safer choice; no general online service should be assumed to produce a usable BIN/CUE pair unless it explicitly documents MDF/MDS input and cue-sheet output.