In the end, two of my purchased videos never played. I even transferred the torrent files to the PC and re-downloaded them from there, suspecting that downloading them on the Mac was messing up the DRM somehow, but I still got the same errors. $5 and too many hours lost, I was media-less and frustrated.
Ouch. This service has just launched and it’s already getting bad reviews. The issues experienced here seem entirely DRM related. Not only do these protections halt piracy, they even halt viewing of the media by anyone.
Source: Ars Technica