Skraper vs verifydump

Skraper is a free, non-commercial, non-profit application that adds metadata and media to retro-gaming software. It uses the community-fed ScreenScraper.fr database for artwork, screenshots, flyers, 3D boxes, and verified text information. The site advertises support for more than 200 systems and hundreds of thousands of media items and records. Skraper can provide EmulationStation metadata through Recalbox and RetroPie and fill LaunchBox game lists and images. Listed capabilities include game maps, manuals, Pad-2-Keyboard, Tips & Tricks, archive side-file filtering, and file renaming. A local cache, optimization, and multithreading reduce bandwidth use and increase speed. XML mixes can combine remote and local resources with positioning, resizing, rotation, color filters, and text or image layers. Windows may require .NET Framework 4.8.1. Linux requires the latest mono-complete package, with WINE kept up to date recommended. There is no native macOS build. ScreenScraper.fr anonymously records ROM or game names and checksums, which may be validated and added to its database.

verifydump is a free command-line tool for checking compressed .chd and .rvz disc images against Redump Datfiles. It converts each image into the original format described by the Datfile, adjusts the result to Redump conventions, then checks it against the Datfile. Users provide a Datfile, which can be zipped, followed by image files or folders containing them. The tool says it does not modify user files and stops checking an individual image after finding an error. CHD checks require chdman and binmerge, both available in the system PATH; RVZ checks require DolphinTool in the system PATH. Some Redump cue metadata cannot be represented in CHD. Users can provide original cue files with --extra-cue-source or ignore cue mismatches with --allow-cue-file-mismatches. Verification creates temporary converted files and deletes them afterward; the project suggests a RAM drive for frequent checks or large collections to reduce SSD writes. Windows users can use the offered executable, while Linux and macOS users can install through pipx or another Python package installation method. The package requires Python 3.10 or later and below 3.16. The project directs bug reports and questions to GitHub issues.