Hi, I'm a Staff Member of [Dlive](dlive.io) and stumbled upon your post! 

>Their playback service also seems more reliable than dtube. And although they are known for Live Streaming I'm wondering if you could replay pre-recorded stuff instead of uploading to dtube.

Yes, we have a video hosting feature on DLive! Not only does the DLive platform cator to livestreamers but any sort of video content. We recently upgraded the video sizes from 1GB to 2GB, so if you have a video you'd like to share to the world then gladly try out our video hosting!

Hope I helped a little :D