It's a bit confusing for the not-yet-initiated. Cutetube (the original) stopped working due to YouTube changes and is no longer maintained . It has been supplanted by cutetube2 which is still maintained. And as noted above, a number of videos don't work at all with cutetube2 due, I understand, to problems implementing a secure connection (https, I think) that YouTube requires for some but not all vids. Why YouTube does this and does it selectivly, I don't understand.