I have over 10k videos hosted on my server, and I'm using lighttpd to switch the video URLs every 2 hours because of hotlinking protection. This means that all video URLs in video sitemap is only valid for 2 hours.
I have not much experiences of programming, and this is the source i found:
After reading some comments on this question, It is possible to do that by cronjob to generate new sitemap every 2 hours.
But my another big question is, is it really important to having a video sitemap for a video website? Or i can just submit a normal sitemap.xml instead of the video sitemap?
Any suggestion or advice? Thanks!