I'm surprised you say you have successfully downloaded any private, embedded Vimeo
content with VDH. Many of us have failed at that. There are many such reports on here.
Surely you searched this forum before you posted. That's what good netiquette would
prescribe. In any case, let's start our journey to a solution here:
https://groups.google.com/g/video-downloadhelper-q-and-a/c/BzPLK2YyL-s
Be sure you carefully read the first 2 paragraphs there. Once you have read that, you
can check out the references within that web page that I am about to give you. But don't
just find the relevant link & click it. READ the context around the link. I recommend
you bookmark that link & read the entire page, if not now, if not in one sitting, bit by
bit over time.
You find a reference on that web page by searching the text of that page using various
search keys. The search keys I am suggesting are these:
problem report
stealth quote
short tutorial
vimeo
Next, look for "problem report" within the text of that web page. That will give you a
link. Click that, read what you find, & follow the advice. It's not good enough to just
name a web site. Help those who would help you by specifying URLs of particular web
pages on which you are finding content that you are having trouble downloading. I know
I'm not about to scrounge around on some site I've never heard of to see if maybe I can
find something that does or does not work. Make it easy for me to help you. Neither of
you posted a proper problem report. That is essential to problem resolution. Please do
that.
Next, look for "stealth quote" within the text of that web page. That will give you
another link to click. Click that, read what you find, & follow the advice, not just for
your posts in this thread, not just for your posts in this forum, but for your posts
anywhere on Google Groups.
Next, look for "short tutorial" within the text of that web page. That explains why your
response here will use the Reply all button. It also explains why you will NOT use the
Reply to author button.
Next, look for "vimeo" within the text of that web page. That will give a reference to
read & a link to click. Carefully read the reference. Then click the link & read what
you find there. What you will find is a grab bag of possible alternative techniques to
download the content with VDH & then repair it, or to download the content with other
tools & not need to repair it. Do let us know how you get on with this.