Verification is more than a completed write.

An optical drive can finish recording a disc without that result alone demonstrating that every original file has been read back correctly.

BurnSure treats writing and verification as separate, visible steps.

What does SHA-256 verification actually do?

SHA-256 is a cryptographic hashing algorithm that calculates a reproducible value from digital information.

BurnSure uses SHA-256 manifests to establish reference values for source files.

During full verification, the recorded files are read back and their calculated values are compared with the original references.

Matching hashes provide strong evidence that the checked content is identical to the original data.

Choose the level of verification you need.

Full verification

The recommended option when data integrity is the priority.

BurnSure checks the complete selected dataset against its corresponding manifest.

Sample verification

A distributed selection of files is checked.

This provides partial readback evidence while reducing the amount of information that needs to be read.

It cannot establish that every unselected file is correct.

Skip verification

The writing process may be completed without a subsequent content comparison.

A successful write without verification must never be presented as a fully verified disc.

Note: These three choices apply to regular single-session operations. Experimental multisession requires full verification.

Why verify after writing?

Optical recording involves several independent elements: the source data, the prepared image, the writing backend, the drive, the physical medium and the subsequent readback.

A successful response from one stage does not automatically prove the outcome of every other stage.

Verification provides additional evidence by checking the data that can actually be retrieved from the recorded target.

Clear results, without misleading success messages.

BurnSure is designed to distinguish a completed write from completed verification.

If verification is interrupted, unavailable or unsuccessful, that condition should remain visible rather than being represented as a fully verified result.

Does SHA-256 verification guarantee permanent data retention?

No. It establishes a comparison result for the data checked at that moment. Long-term readability also depends on factors such as the physical medium, storage conditions and future hardware availability.

Is sample verification the same as full verification?

No. Sample verification checks only the selected subset. Full verification compares the complete selected dataset.

Why is readback important?

Because it checks information retrieved from the recorded destination rather than relying exclusively on the writer reporting that its operation finished.

Make verification part of your workflow.

Explore BurnSure's approach to transparent optical disc creation.

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