"[Safe harbour applies] if the service provider— upon obtaining such knowledge or awareness, acts expeditiously to remove, or disable access to, the material."
"Awareness" would apply even absent a formal DMCA takedown pointing to the content. So after the first, Youtube is 'on notice' for repeats even where those don't get new takedown notices ... ContentID.
"[Safe harbour applies] if the service provider— upon obtaining such knowledge or awareness, acts expeditiously to remove, or disable access to, the material."
"Awareness" would apply even absent a formal DMCA takedown pointing to the content. So after the first, Youtube is 'on notice' for repeats even where those don't get new takedown notices ... ContentID.