# Summary

Retained six publicly reachable MP4 sample-video candidates from six independent public domains after Playwright browser discovery and curl HEAD/GET verification. One retained candidate is **W3Schools Big Buck Bunny MP4** with direct media URL https://www.w3schools.com/html/mov_bbb.mp4; it was downloaded to outputs/samples/w3schools-mov-bbb.mp4 and verified at 788,493 bytes. The index in outputs/video_index.json records each title, domain, direct URL, source page, curl HTTP status fields, content type, and length or probe size for game-ad creative research triage.