MKV or MP4 are standard and offer the best compatibility with mobile media players (like MX Player or VLC).

In many developing economies, the primary gateway to the internet is a budget smartphone, not a fiber-connected PC. Cellular data can be expensive, capped, or subject to throttling. Downloading a 300MB file on a free public Wi-Fi network or during off-peak data hours allows users to curate a vast media library on a cheap MicroSD card. 2. Micro-Storage Preservation