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#bios

2 posts

RetrogamingDeep Dive July 11, 2026 4 min read

BIOS Files, Copyright, and the Law: The Real Rules Behind Emulation

Emulator software and the copyrighted files it needs to run are two separate legal questions with two separate answers — and conflating them is where most confusion about 'is emulation legal' comes from.

#legal#bios#copyright

RetrogamingFix July 11, 2026 3 min read

Fixing 'BIOS Not Found' and Bad Checksum Errors in Emulators

A console emulator refuses to boot anything, citing a missing or invalid BIOS file. Here's what these files actually are, why an emulator needs them at all, and how to fix a checksum mismatch.

#fix#bios#emulation