Minecraft Wii U Product Codes Decoder

A fast, lightweight Python script designed to decode the undocumented WiiUProductCodes.bin file used in Minecraft: Wii U Edition. It seamlessly parses both the older, dynamically padded legacy formats (like TU v64) and the natively sequential modern formats (like TU v688), extracting all structural DLC items into a clean, human-readable .json payload.

Features

• Format Adaptation: Automatically detects backward-compatibility modes and deploys a byte-by-byte forward-scanning algorithm to safely bypass shifting alignment padding in legacy game files.
• Cross-Region Consistency: Natively detects and supports binaries formatted for European (AUMP01), American (AUME01), and Japanese (AUMJ01) game distributions.
• Drag-and-Drop Native: Built exclusively using standard Python tooling focused heavily on quality-of-life interface interactions on Windows (interactive paths via simple drag-and-drop mechanics).
• Endianness Management: Structurally accommodates the Wii U's native Big-Endian architecture integrated dynamically alongside C++ Little-Endian arrays without corruption.

Usage

1. Simple Drag & Drop

Simply drag your WiiUProductCodes.bin file and drop it into the decoder.py terminal prompt when executed, or directly onto a Windows shortcut. The script will consume it instantly and emit the decoded results.

2. Command Line Execution

Alternatively, execute the script natively via command line by passing the binary's file path as an argument:

python decoder.py "path/to/WiiUProductCodes.bin"

Example Output Structure

The output extracts and preserves all known 32-bit parameters from the WiiUProductCodes.bin configuration:

    {
        "index": 42,
        "name": "Festive Skin Pack",
        "short_name": "SPF",
        "product_id": 518,
        "code": "0010",
        "sort_index": 1667321888
    }

Binary Documentation

If you are developing your own engine, a broader emulator infrastructure, or are interested in seeing how the hex structure maps internally inside the console itself, check out the provided WiiUProductCodes.md included in this repository for full technical formatting specifications.

For a complete catalogue of MD5 hashes and format timelines tracking every known Title Update (from legacy v64 to modern v688), see WiiUProductCodes_Versions.md.

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No external modules dependencies required. Strictly uses the Python standard library.