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High. Features a simple "point and click" interface for patching ISOs.

If you are looking at the file, you are likely dealing with the Just Enough Sony (JES) tool, a popular utility used by the PlayStation 2 homebrew community to patch and prepare game ISOs for various loaders. Direct Answer Jes.7z

The ".7z" format indicates it is highly compressed using 7-Zip to keep the file size minimal. ⚖️ Performance Review Ease of Use Jes.7z

“7-Zip fits a nice niche... and it is able to handle a large variety of file formats in the process.” Wikipedia Jes.7z