Manuals.plus video sample files

21 requested extensions, 5-second silent format-labeled clips.
Page: https://manuals.plus/formats/sample-videos

QVT is a historical descriptor fixture, not a validated Quantum stream.
XAP is a Silverlight application package. Modern web playback extracts the included MP4; it does not execute the legacy application.
M3U/RAM/M3U8 are playlists and need their referenced media/segments.
DivX is MPEG-4 Part 2 in AVI with the DX50 tag. M4V uses an MP4-family container.

Players: Video.js 8.24.1 (https://github.com/videojs/video.js); Video.js HTTP Streaming; ffmpeg.wasm wrapper 0.12.15/core 0.12.10 (https://github.com/ffmpegwasm/ffmpeg.wasm); fflate 0.8.3 (https://github.com/101arrowz/fflate).
Conversion: FFmpeg (https://github.com/FFmpeg/FFmpeg).
Self-hosted dependencies and license information: vendor/.