Hello! I have been having this issue for a couple of days now, initially only a recording or two could not be played, instead a black screen was shown with this error Unable to open file: 8000007a but today , every single new recording fails to play, file sizes seem correct so i am unsure what exactly could the problem be. I should mention it has only been a few days since i bought BlueIris4 and yesterday i upgraded to version 5 but had no new issues except for this error. I am running blue iris as a service since we tend to have unexpected power outages and this makes sure it starts up with the server and continues recording. Any help or tips greatly appreciated!