Thanks so much for the reply .I don't really understand root directory & stuff like that but I've youtubed it hoping I can work it out (maybe you have a better information link?) , thanks again. Much appreciated.If you copy that file to the root of your C:\ drive, are you able to play it from there?
Just noticed the video will play from the 'Videos' folder on my PC where it arrives directly after being recorded by OBS, but, then gives that (as in screenshot) error notification AFTER I place it in external HD folder. Infact ,I've just re-copied it back the PC VIDEOS folder it came from & it WILL play from there again. Does this sound like an issue regards you're previous advice ?If you copy that file to the root of your C:\ drive, are you able to play it from there?