It sounds like you're working with PS4 homebrew tools, specifically
Regional Fixes: Includes options to force 60Hz on PAL (European) games that originally ran at 50Hz, improving fluidity. Version 0.2 Context psxfpkg v02 top
psxfpkg v02 Top introduces recursive mounting. Instead of extracting files to a hard drive (which can take gigabytes of space and hours of I/O time), v02 allows for virtual mounting. It reads the UTOC and presents the file structure to the operating system as if it were already extracted. This feature alone has revolutionized modding. A texture modder can now open a PKG, inject a new texture file into the virtual mount, and have psxfpkg repack the container on the fly, bypassing the tedious "extract-edit-repack" cycle. It sounds like you're working with PS4 homebrew
You might be asking: Is the PSXFPKG V02 Top relevant to me? The answer depends on your use case. This package is not designed for casual web browsing. Instead, it excels in three verticals: If you want, I can: PSX-FPKG is a
PSX-FPKG is a specialized tool for the PlayStation 4 homebrew community designed to convert original PlayStation 1 (PSX) games into playable Fake Packages (.pkg). This allows users with exploited consoles to play classic titles using the official Sony emulators found in the PS Plus Classics Catalog. Key Features
Multi-Disc Support: Allows users to combine up to four separate .bin files into a single package file, making it possible to play games like Metal Gear Solid or Final Fantasy VII seamlessly.
Jailbreak: Run your exploit on the PS4 and enter the GoldHEN/Debug Settings menu.