pip install m3ufilter m3ufilter -i playlist.m3u -o cleaned.m3u --check-urls --remove-dead

: While marketed as having "no lag," real-world performance for M3U playlists heavily depends on the stability of the host's internet connection and the server-side uptime of the individual stream links. Ease of Setup

To utilize a portable M3U playlist of this size effectively, you need software designed for library management rather than simple playback.

You can save a .m3u file onto a thumb drive. Since it is just text, it takes up almost no space (usually under 1MB even for 10,000 entries).