Ajay-ddd

Hello,
I wonder if these situations are legal/viable in regards to youtube videos

I'm embedding youtube vids that are legaly allowed. (ones without sony,emi, music etc.)
1. Could I also allow visitors to download these vids via filelocker or from my host?
example: "download all the vids in highest quality here"

2. In the future can I allow content that people submit to be downloaded via my site? (ones without sony,emi, music etc.)

I'm unsure and doubtful of this sort of use but want to get your thoughts.
Thanks