CB-Profil Bilderalben bzw. Videos einbinden

CB Video Plugin:
The video was downloaded from youtube and locally stored for testing purpose only. It is in flv format. It is not working with a link to the locally stored file, but it is working with a link to youtube. In my opinion CB video plugin is not able to stream a locally stored file. If I empty the browser cache, the browser is loading a pretty long time when the page is called up. But the front end rectangle remains blank in the end. "No video loaded". No thumb, no video...

Delimiter Field:
I can not use a delimiter field, as it shows the same content to all profiles.

Editor Text Area:
You pointed me already to www.w3schools.com . Thank you for that. Learning never stops, I know. But I don't need additional knowledge of HTML at this point. The tag is cleaned away in editor text area though it is white-listed according to your advice. Cleaned. Completely. The Whole Tag. No matter what the link is to. Adding "video" makes no difference.

Sourcerer:
If I use Sourcerer-tags, there is at least not everything cleaned. It was worth a try...

The video was downloaded from youtube and locally stored for testing purpose only. It is in flv format. It is not working with a link to the locally stored file, but it is working with a link to youtube. In my opinion CB video plugin is not able to stream a locally stored file. If I empty the browser cache, the browser is loading a pretty long time when the page is called up. But the front end rectangle remains blank in the end. "No video loaded". No thumb, no video...

Then I guess it can't. As I said earlier I have no idea if it'd work in such a scenario as it was never tested for locally usage. It was designed to load external sites videos (youtube, etc..).

The <embed> tag is cleaned away in editor text area though it is white-listed according to your advice. Cleaned. Completely. The Whole Tag. No matter what the link is to. Adding "video" makes no difference.

Your Joomla WYSIWYG editor may also be clearing it. Check your WYSIWYG editor settings within Extensions > Plug-in Manager and see if it has a filtering feature that could be stripping out the object embeds.

Disabling the editor solves the problem. Halfway.

Now I get a message in the front end: "Ein Plugin wird benötigt, um diese Inhalte darzustellen." (A plugin is needed to show this content.)

You need to have your editor enabled, don't disable it. You need to edit it and see if it has a parameter to prohibit certain elements. For example please see Extensions > Plug-in Manager > Editor - TinyMCE and you'll notice "Prohibited Elements" has "script,applet,iframe" for example. You'd for example want to set "Extended Valid Elements" just below the above parameter to "object,embed" so object embeds won't strip.

Just a note on next release of CB (1.10.0). The video field will be built into CBs core as a core fieldtype. I'm also reviewing upgrading it so it can accept video URLs to internal videos so what you're wanting will be doable, but it won't be doable until next release which is scheduled for end of this month, but likely will take longer. For now though you can still try to render it using a "Editor Text Area" fieldtype.