23(MS) likely refers to the 2023 Madison Scouts drum corps performance. Madison Scouts are a premier World Class drum corps based in Madison, WI.

While .mp4 is universal, the HEVC codec requires modern hardware or software players like VLC Media Player or MPC-HC to play properly on older computers.

.mp4 . A universal format compatible with almost all modern devices, including smartphones, tablets, and smart TVs. Usage Notes

HEVC (High Efficiency Video Coding / H.265). This provides high compression, meaning the file size is small while maintaining better quality than older codecs like H.264.

AZWm (A common tag for high-efficiency video archives, often associated with sports or specialty performance recordings).

At 360p with HEVC, this file is exceptionally small (likely under 100MB), making it ideal for archiving entire seasons on limited storage.