Tools such as VideoPlus run directly in your browser.
A naive “save video as” won’t work because there is no single video file URL.
Privacy and legality framed the project. Mei only targeted public heritage pages and an explicit “allow-download” list provided by partner institutions. She added safeguards — an opt-out list, and a gentle rate limit — to respect server load. When a partner warned about bandwidth spikes, she paused downloads, negotiated off-peak windows, and implemented authenticated access for restricted collections. The downloader logged actions but never collected personal data beyond what the user supplied.
