I want to generate a video-sitemap. As I host my videos on Youtube and only included in a hyperlink (not embedded - its getting displayed in a fancybox); I added the "Video Schema" on each video, but only the last video per  page is listed in the sitemap. Funny.
The page: http://www.kumquats.de/kumquats-kinderwagen.htm

It looks like this:

<div class="img" itemprop="video" itemscope itemtype="http://schema.org/VideoObject">
<a class="video"  title="Ein Tag bei den Kumquats<br/>Gewinner des<br/>
Video-Wettbewerbs 2012!" href="http://www.youtube.com/v/oUlUE2n5V3E?version=3&amp;hl=de_DE&amp;rel=0&autoplay=0" >
<img src="uploads/images/GalleryThumbs/1741-33.jpg" alt="Ein Tag bei den Kumquats Gewinner des  Video-Wettbewerbs 2012!" /></a>
<h4><span itemprop="name">
Ein Tag bei den Kumquats<br/>Gewinner des<br/>
Video-Wettbewerbs 2012!</span></h4>
<meta itemprop="thumbnailUrl" content="http://www.kumquats.de/uploads/images/GalleryThumbs/1741-33.jpg" />
<meta itemprop="description" content="Ein Tag bei den Kumquats Gewinner des Video-Wettbewerbs 2012!" />
<meta itemprop="embedUrl" content="http://www.youtube.com/v/oUlUE2n5V3E?version=3&amp;hl=de_DE&amp;rel=0&autoplay=0" />
</div>

<div class="img" itemprop="video" itemscope itemtype="http://schema.org/VideoObject">
   <a class="video"  title="Der Hut<br/>2. Platz des<br/> Video-Wettbewerbs 2012!" href="http://www.youtube.com/v/RTf35houq0k?version=3&amp;hl=de_DE&amp;rel=0&autoplay=0" >
<img src="uploads/images/GalleryThumbs/1742-33.jpg" alt="Der Hut 2. Platz des  Video-Wettbewerbs 2012!" /></a>
<h4><span itemprop="name">
Der Hut<br/>2. Platz des<br/>
Video-Wettbewerbs 2012!</span></h4>

<meta itemprop="thumbnailUrl" content="http://www.kumquats.de/uploads/images/GalleryThumbs/1742-33.jpg" />
<meta itemprop="description" content="Der Hut 2. Platz des Video-Wettbewerbs 2012!" />

<meta itemprop="embedUrl" content="http://www.youtube.com/v/RTf35houq0k?version=3&amp;hl=de_DE&amp;rel=0&autoplay=0" />
</div>

As I mentionned only the last Video of 9 or 10 on that page is shown in the sitemap.

Any suggestions?

regards,
Klaus

I will take a look. I know A1 Sitemap Generator will try match 1 video / 1 page, but if there are no other relavant pages for a video, it should be able to assciate a page to multiple videos

Yes, obviously only one video per page. Also A1 draws the description from my markup, but the thumbnail it takes from Youtube. Of course, I'd prefer that it takes it from my markup.
I also tried to use the facebook scheme, but it didn't work at all.
Also: is there a way to limit the Keywords it grabs? As it grabs the keywords from the site, they are the same for each video...

Sitemap-code looks like this:
<url>
    <loc>http://www.kumquats.de/kumquats-kinderwagen.htm</loc>
    <lastmod>2013-07-18T11:31:10+00:00</lastmod>
    <changefreq>daily</changefreq>
    <priority>0.6</priority>
    <video:video>
      <video:player_loc allow_embed="yes">http://www.youtube.com/v/RTf35houq0k</video:player_loc>
      <video:thumbnail_loc>http://img.youtube.com/vi/RTf35houq0k/default.jpg</video:thumbnail_loc>
      <video:title>Kumquats-Videos - die original Kumquats Handpuppen</video:title>
      <video:description>Jessie mit ihrem Jessiecar 2. Platz des Video-Wettbewerbs 2007!</video:description>
      <video:tag>Kumquats</video:tag>
      <video:tag>Handpuppen</video:tag>
      <video:tag>Handpuppe</video:tag>
      <video:tag>Puppen</video:tag>
      <video:tag>Puppe</video:tag>
      <video:tag>L.</video:tag>
      <video:tag>Bodrik</video:tag>
      <video:tag>Degro</video:tag>
      <video:tag>pädagogische</video:tag>
      <video:tag>puppets</video:tag>
      <video:tag>handpuppet</video:tag>
      <video:tag>handpuppets</video:tag>
      <video:tag>videos</video:tag>
      <video:tag>handpuppen</video:tag>
      <video:tag>sehe</video:tag>
      <video:tag>schenken</video:tag>
      <video:category>handpuppen</video:category>
    </video:video>
  </url>


It would be nice, if I could force A! to use my Tags....Google recognizes them per Webmastertools/structured data...

Regarding the multiple videos page, I have made a small code in the way videos are added beyond the first. That should fix the issue.
(There are multiple passes to ensure the most relevant video/page combo is always found based on a number of scoring factors, among that uniqueness to video/page linking, name similarity, thumbnail sname similarity etc..
But for videos not matched as "primary", an "any" match is used. The anyhow match used a method that in your specification situation did not cut it. That is fixed now.)

Keywords are also taken from thumbnail descriptions. (And takes priority before page.) Offhand in my test your own thumbnails were used. But I will run one more today

The way you do it (e.g. facebook scheme) is really meant for one video/page.

Hey cool. Very good Support. Hope, I can use it soon ...and you tell me how to install it...

Regards,
Klaus

Just wanted to confirm what I wrote earlier regarding the multiple videos.

However, regarding thumbnails, you were correct. The YouTube generated thumbs score higher in A1SG when it tries to match the correct thumb to the correct video.

You would solve most of the problems you have encountered if you used standard embed tags and/or (better yet) one-page/one-video.

While you can avoid the youtube thumbnails by removing img.youtube from "external" tab before building video sitemap, A1SG will currently have trouble associating the correct thumb to the correct video.

I will try investigate if there could be a way based on proximity of image/video references in code that A1SG could make a beter educated guess. No promises though. (But I have an idea that could work more or less as a tiebreaker which would help in cases like these. I will report back when I have had time to investigate it.)

Status update:

The concept of using code proximity-within-page in the scoring (in addition to name similairty, used/linked uniqueness to page and special markup tags/atributes) for selecting thumbnails seems to work.

I expect 4.2.6 to be a substantial improvement for you

4.2.6 released.

The way you use/link videos, there's still room for improvement in A1SG, but I ran out of time, so I released today. (Rest will have to come in a 4.2.6 update later.)

You will need to rescan (and reapply video sitemap presets since there has been added a new option in data collection)