Kaltura lets you edit the properties of your media, and of any media where its owner has assigned you the "Co-editor" role.
Each media item in Kaltura has a variety of properties, which are visible when you click on the name or thumbnail of the item in your My Media area:
- name
- description
- keywords
- thumbnail image
- captions
- download permissions
and more...
This video from Kaltura's Learning site shows you how to edit your media in MediaSpace.
(The interface in VCC Moodle is similar.)