Castmate
How to cast and download Internet Archive videos
Tested October 27, 2026 with Castmate for Chrome.
- Open the Internet Archive video in Chrome and start playing it.
- Click the Castmate icon in the toolbar. The video shows up with its title, length and quality.
- Press Cast and pick your TV. The TV plays the stream itself, in full quality, so you can close the laptop.
- Or press Download, then Save to computer, to keep it as one MP4 file. (Saving comes with the next Castmate update, 1.0.5.)
What we found
- Casting works directly. The TV fetches the stream itself; nothing else needs to run on your computer.
- Saving works: one MP4 file. The videos we tried had no sound track to begin with.
Test details
| Tested | October 27, 2026, Castmate 1.0.5, Chrome on macOS |
|---|---|
| Stream | Plain video file |
| TV | onn. 4K Plus (Google TV, Chromecast built in): played directly from the site |
| Saved | first 1092 s of the video as MP4, picture only (no sound track in the source), plays without errors |
If it stops working, press Didn't work? Report it under the video in Castmate and we'll look at Internet Archive again.
Only save videos you have the right to keep. Internet Archive is a trademark of its owner; Castmate isn't affiliated with or endorsed by Internet Archive. All guides ยท Support