EDIT 5/31/2019: As some of you may have already heard, MaxDrive has been cancelled due to the partnership falling through. We are still planning to have NAS capability in the future but that feature will be delayed after this. We’re sorry about this and we’ll keep you updated as we make progress on a new solution.
I use a software RTSP recorder on a Mac MINI (openRTSP), so no actual NAS, though I am considering.
Open RTSP is probably the most widely used protocol. The only other I think that might be useful would be RTMP, but formwhat I understand it’s not as open as RTSP. There may be others, but I’m not really an expert on streaming protocols.
Don’t own a NAS device but would get one based on compatibility with Wyze. I’m interested in RTSP in order to integrate the Wyze cams with one of the popular RTSP enabled security systems. Nothing specific yet.