I don't get it, can you guys download these videos, and if so do they need to be converted? http://www.rtlxl.nl/#!/ontvoerd-277543/e2bb997b-c017-4c94-9b02-870aeadf557e http://www.rtlxl.nl/#!/ontvoerd-277543/1ceffcb9-90fb-4afc-9696-5590ec56f736 https://www.downloadhelper.net/
You can try youtube-dl. Here is a list of supported websites. I just successfully downloaded both videos, in mp4 format, no conversion needed.
This one looks a bit shady, I'm not comfortable with it. BTW to clarify, I can download the files in MPEG, but MPC can't play it, and Video DownloadHelper says they should be converted. Is it perhaps because these files are protected with DRM? Thanks, but it's quite hard to figure out how it works, it's kinda crappy.
It doesn't seem to work with SBIE (inside the sandbox) and on top of that, it also installs a driver, this is something that DM's shouldn't be doing. In other words, it's too intrusive for me.