Where are you looking to download the videos from? There's a really super nice downloader app that works for music, videos, and most other media that I have and love. I've used it forever and it's perfect, you can get the free version and get 10 downloads, but the paid version is well worth it
it unzips zipped files, it adds tags to media so it can automatically put the artist and everything else tags onto the media. If it doesn't do one of the tags, it's easy to edit them.
You can also wifi transfer (paid version) and access the apps files from any device on your network by typing in the IP address which makes it really easy to transfer files to/from the app easily without having to hook it up to a computer wired.
Just search "ASPS Apps" on the App Store, it's free music download or whatever it's called. It won't disappoint. Also, the app is compatible with both the iphone and ipad so if you have an iphone, buy it once and it works for both devices, no need to buy it twice
Can't say enough good stuff about the app though, I love it and have used it for years and they updated when something starts (somewhat not working). I love it though as you can tell