It will need to be in mpeg format, mpeg2 I think. Stand alone dvd players will not recognise avi files.
Save to pc is one of the best for downloading youtube vids and it will save in various formats.
Hands-on: Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
Samsung's beautifully designed Galaxy S8 makes for better VR experiences too
47 iPhone camera tips to help you take better photos
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.