No. 4 of 39 ·ROM Management Software

verifydump

Windows · Mac · Linux

Freedom report

Three barsScore 6.6

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

verifydump is ranked #4 of 39 in ROM management software on Freedom251. It runs on Linux, macOS, Windows. There is a free plan.

verifydump plans and pricing

All plans

Free Free Open-source command-line tool; verifies .chd and .rvz images against Redump Datfiles github.com · 9 Oct 2026

Compared on ROM management software

Free plan: Yes
File renaming: No
Supported platforms: Windows, macOS, Linux

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The record

Purpose: verifydump is a command-line tool for checking whether compressed .chd and .rvz disc images match Redump Datfiles.
How it works: It converts compressed images to the original format described by Redump, adjusts the converted dump to Redump conventions, and checks it against the Datfile.
CHD dependencies: Verifying .chd files requires chdman and binmerge, and both tools must be available in the system PATH.
RVZ dependency: Verifying .rvz files requires DolphinTool, which must be available in the system PATH.
Installation platforms: The project offers a Windows executable and says Linux and macOS users can install it with pipx or another Python package installation method.
Inputs: Users provide a Datfile, which may be zipped, followed by one or more compressed dump files or folders containing them.
File handling: The tool says it never modifies users’ files and stops checking an individual dump after it finds an error.
Cue file limitation: Some Redump cue metadata cannot be represented in CHD, so users can supply original cue files with --extra-cue-source or ignore cue mismatches with --allow-cue-file-mismatches.
Temporary files: Verification creates and then deletes temporary converted files; the README suggests a RAM drive for frequent verification or large collections to reduce writes to an SSD.
Support: The project asks users to report bugs or questions by opening a GitHub issue.
License: The package metadata lists the MIT License.
Runtime requirement: The package metadata requires Python 3.10 or later and a version below 3.16.
Release: The latest release shown on GitHub is v1.0.1, described as containing bug fixes and compatibility updates for latest tool versions.
CHD requirements: Verifying .chd files requires chdman from MAME and binmerge, both available on the system PATH.
Price from: Free

Where it ranks on Freedom251

Best ROM Management Software in 2026#4 of 39

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Sources

github.com/j68k/verifydump· checked 8 Oct 2026
pypi.org/project/verifydump/· checked 8 Oct 2026
github.com/j68k/verifydump/releases· checked 8 Oct 2026