iPhone 4 (iOS 7.1.2)
Back on infuse 2 I was able to play various videos with little to no issue. Even going as far as .mkv and 720p and 1080p formats. However, with infuse 2, I’m nothing seem to play anymore, it just hangs at the start of the videos, and occasionally the spinning wheel (loading) appears, without much progress in actually playing the video.
Emphasizing again, I had no issues playing the same videos back with infuse 2, on the same phone with the same iOS, regardless whether 720p or 1080p are an overkill for that iPhone 4.