Fixed my problem (sound didn’t play on Android 4.x but did on 5+) by dowgrading the ‘cordova-plugin-media’ plugin to v1.0.1. Seems like the plugin version 2.x isn’t compatible to Android 4.x.
So you where able to play a video form a local file on android within an video container? I wasnt able to get it to work 9 months ago, but maybe there were some changes. Will definitely give it a try again in the next time.
No sorry, I was playing mp3 files but the error message was identical. On Android 5+ it worked without problem but on Android 4.x it came up with the MediaResourceGetter Unable to read file: file:///android_asset/www/.../...mp3 error message