| Format | Quality | File Size | Best For | | :--- | :--- | :--- | :--- | | | 128kbps – 320kbps | Small (3-8 MB) | Listening on old iPods, Android phones, car USB drives. | | MP4 | 360p – 720p | Medium (15-50 MB) | Watching videos on modern smartphones/tablets. | | 3GP | 144p – 240p | Very Small (1-3 MB) | Nokia/Samsung feature phones from 2005-2012, saving extreme data. |