What app are you using to stream mp4's?

[telrod11]

Streaming mp4's (video) from my android phone or tablet has been problematic with my Gen 2 Chromecast, and am wondering what app you guys are using to stream?
I've tried:
MX Player
VLC
Photos (googles app)

with some success, but inevitably 15 to 45 min in, it will stop streaming requiring a restart of the app, and sometimes a reboot of Chromecast.

Any thoughts / recommendations?