How to download youtube videos onto my mac easily, and for free?

Hi!
Try to remove the drm from a kobo book with imElifin Unlimited and gets the answer that the program can't remove remove drm from Kobo Plus-books. But this isn't a Kobo plus-book, just an ordinary Kobo book. What is wrong and what can I do?
Best
Magnus

My order receipt says it is a lifetime code, why will it not work?

I have got a lot of videos on my computer, in mov, mp4 and avi formats. Can I use a single video or DVD burner to burn all those files onto my blank dvd disks? I tried nero burner, not good. So I hope I could get an answer here and can you tell me how? I prefer an easy way to do this. Thank you very much!!!

Typed in Activation Code, but nothing happens.

how can i download a youtube video?

Is there an app to record iPad screen?

The share option only allows me to upload to sites like youtube, and the email attachment restricts the size. I connected my iphone5s to my computer, but all that shows up is pics. When I used my iPhone 3, everything (pics, music, videos) was transferred well.

How much video can a 30gb ipod video hold? What's the minimum and maximum?

What is the difference between HD DVD Player and Blu Ray DVD player? I have a Toshiba HDTV 1080 P DVD player, but am considering a Blu-ray DVD player. Will the Blu-ray player play my regular DVDs better than my DVD player now?