Cannot delete a video from assets library

Hi

I've made an assets library in a Document center site.

I've uploaded a video in it and now I can't delete it (not even whole library).

It says it's on hold. But I don't have any holds in whole site.

It seems that is a folder content type and I can't delete it.

Other documents from other document libraries from the same site I can delete.

Any ideas what's happening ?

Thank's

Sorin Sandu