video

Hi guys, I downloaded a course but some video do not play and it shows a M4V file, the problem is that I tried every software to open but nothing worked. Are some of this video DRM protected, has anyone have ever experience this? Let me know

Is there anyway I can download videos hosted with VdoCipher ? If there is anyway I would be able to contribute by adding those videos.If it is not possible to download videos, is there anyway I can record those videos without the watermarks ?