I am updating my sitemaps and I am trying to figure out how to do this best. I have in total 2500 URLs I would like to include.
I would like to have 3 different sitemaps - one for html, one for video and one for images. However if I create 3 separate sitemaps some of the <loc></loc> URLs will overlap and show in my WMT repor - for example the html sitemap will include just the URL, the image sitemap will include the + images, the video sitemap will include the URL + videos. So is not that too many same URLs placed in different sitemaps. For example for one page with video and images there will be 3 references to the same URL in <loc></loc>.
What is best to do?
Also I have languages on my site (each one 100-150 pages). Should I create separate HTML sitemaps for them or should I include them in the general HTML one?