Hello CCC
and thanks again for all your helpful answers.
You are right, this would be a solution, to give the links for youTube (which I actually have done, too). But the fancy thing IS the video directly inside the book without sending people to YouTube where they might get lost. That's why I chose ibooks author with the limitations on the readability instead of doing a normal book for Amazon.
I see I have expected too much from the technology as it is in the present moment and have to re-dimension my ideas.
Here a comment which I wrote to your previous post and with which I wanted to sign off - being led back to the thread and finding new comments here:
"Just re-reading the last one - and you have caught me again. I have NO idea how to resize photos (unless it is an internal procedure like in mailchimp) and no idea what WYSIWG and PPI mean.
Anyway, I had believed it to be fairly easy to make an iBook, but now I see that one has to be a programmer or at least very familiar with a lot of computer stuff (which I thought to be in comparison with most people I know.)
I think I will NOT try again with another book project, as this one has cost me about 2 months steady work and learning how to fix things - without the desired outcome.
BTW. It definitely is my upload speed which doesn't allow the package to upload. I learnt how to get the messages from the background activity and that was the error news. as well as on iTunes Producer itself. And I don't want to spend more money to have it produced by an official producer for something which would be sold for less than 2 bucks - if it is sold at all.
A suggestion: It would be nice when iBooks Author would give an initial warning to people who want to use it for iTunes that their technical equipment might not be able to support the whole process. So much time and money could be saved - and much frustration energy."
Thanks again for your help, it was a highlight to have been able to get answers from somebody and feel the support.
Bye bye
Heidi