The concept of BMS Packs dates back to the early 2000s, when fans of Beatmania IIDX began creating and sharing custom music packs using the game's built-in song editing tools. These packs, often distributed through online forums and websites, allowed players to access new songs and challenge themselves with fresh rhythms. Over time, the BMS community grew, with creators developing their own tools and software to streamline the pack-making process.