The format is open-source and extensible, leading to variants like (JSON-based) and pms (for Pop'n Music ). BMS packs are simply .zip or .7z archives containing all necessary BMS, audio, and asset files for a set of songs.
song packs (conversions of Konami arcade data) are often considered "illegal BMS" Availability : Many reputable BMS hosting sites, such as , have removed these files due to copyright concerns. Beatmania Iidx Bms Packs
Unlike other rhythm games that use pre-bundled "packs," BMS content is typically categorized into , Event Packs , or Difficulty Tables . The format is open-source and extensible, leading to