Fc2-ppv-1864525 ~repack~ Here

Use exiftool on a few frames to see if any hidden data was appended:

# Get the offset of the final `moov` atom (e.g. 124,567,890) tail -c +124567891 fc2_1864525.mp4 > trailing.bin hexdump -C trailing.bin | head The dump shows plain ASCII: fc2-ppv-1864525

import re, sys, json, urllib.parse, requests html = open('page.html').read() m = re.search(r'var\s+videoUrl\s*=\s*"([^"]+)"', html) url = urllib.parse.unquote(m.group(1)) print(url) Result (example): Use exiftool on a few frames to see

sox audio.wav slice.wav trim 8 2 Open slice.wav in Audacity → “Plot Spectrum” → note the regular on/off bursts. 890) tail -c +124567891 fc2_1864525.mp4 &gt