: Occasionally, these are simply test uploads used by developers or archivists that get picked up by mystery seekers. Common Themes
: If any files are extracted, they are usually "glitch art" or sound files that, when viewed in a spectrogram, reveal hidden shapes. CCCCCCC.rar
: Most "C-series" .rar files are password-protected, leading to long-running collaborative efforts to crack them. : Occasionally, these are simply test uploads used