When searching for "100MB HEVC movies," it is important to distinguish between high-efficiency storage and realistic video quality. HEVC (High Efficiency Video Coding), also known as , is designed to provide significantly better data compression than the older H.264 standard. Understanding the 100MB Format
For now, HEVC remains the sweet spot for compatibility (playable on any device from the last 7 years via VLC or MX Player).
For archival enthusiasts, travelers with limited data, or collectors of very old TV shows, these tiny encodes serve a purpose. They are not "good" by modern standards, but they are – like reading a newspaper under a dim light.