H.264 MP4 videos for A2Seek, provided separately for optional, selective download. Each video is an independent file under videos/videogroup/video.mp4. Clip IDs match the annotation indices. Frame dimensions, frame rate and frame indexing are retained; each file supports seeking through an MP4 index. metadata/videos.csv, metadata/videos.jsonl and metadata/videos.parquet list available videos, file sizes, SHA-256 checksums, dimensions, frame counts, capture conditions, original DJI filenames and annotation split membership. The videos split is a file index; official train/validation/test membership is recorded in the intrain, invalidation and intest columns. The lists under metadata/splits/…