Yeah, I should have worded that better. I was referring to Youtube's license with the RIAA, since Youtube doesn't provide a copyright license to its users for content licensed from third parties.
If the license between the RIAA (or other licensor) and Youtube allowed visitors to make permanent copies of Youtube streams, then downloading a Youtube video would not be a copyright violation. But generally, having entered into streaming and downloading licensing agreements with the RIAA before, I would be extremely surprised if the RIAA would enter into such a license with Youtube, as it would kill sales of digital music downloads if people could just download permanent copies of Youtube videos instead for free.
If you own the copyright and upload a video to Youtube, then it wouldn't be a copyright violation to download that video from Youtube.
If the license between the RIAA (or other licensor) and Youtube allowed visitors to make permanent copies of Youtube streams, then downloading a Youtube video would not be a copyright violation. But generally, having entered into streaming and downloading licensing agreements with the RIAA before, I would be extremely surprised if the RIAA would enter into such a license with Youtube, as it would kill sales of digital music downloads if people could just download permanent copies of Youtube videos instead for free.
If you own the copyright and upload a video to Youtube, then it wouldn't be a copyright violation to download that video from Youtube.