In an era where digital preservation is increasingly important, this article stands out as a remarkable example of reverse engineering a forgotten piece of technology. The author discovered a portable DVD player with built-in games from the mid-2000s, based on a proprietary format called Native32, developed by Sunplus Technology. The games, created by Potatoo Multimedia Studio, were encrypted with DES and stored in a custom container format. The author meticulously documents the process of decrypting the games, understanding the binary format, and ultimately building a Rust-based emulator to run them on modern hardware. This is not just a technical tutorial but a detective story that combines cryptography, binary analysis, and systems programming. The project highlights the challenges of preserving digital media from an era when proprietary formats were common and documentation was scarce. For developers interested in reverse engineering, retro computing, or Rust, this article provides a wealth of practical insights and inspiration.
A detailed account of reverse engineering a proprietary DVD game format from the 2000s, including DES decryption and building a Rust emulator.