The solution does works but it costs
I just used the aeroquartet site listed above to repair a .mp4 file that wouldn't play after procaster crashed at the end of a live stream (1.85GB).
I had to pay a fee, but I needed the video for a project. If Livestream can't provide a fix as quickly and effectively as this company then those guys should be brought in as LiveStream consultants ASAP.
I can only pay for so many repairs before it will be time to find a Livestream alternative.
Aside from that I love the service and at least I have a reliable solution for retrieving the video.