SOLVED: Media Library won't add

[spaceexplorer23]

ACLs are an additional layer of permissions that your average user doesn't need and overrides the standard linux permissions

Also, didn't notice that /media also has an ACL.

Code:

sudo setfacl -b -R /media
sudo chmod 755 /media
sudo chown -R tyr:media /media/library
sudo chmod -R 770 /media/library

Ok can you explain what we just did here? Were the ACLs screwing this up? Did I put them there trying to fix it earlier?

This does appear to have worked. I just want to know exactly what we did. What do the 755 and the 770 denote?