AnyDVD HD, by Redfox, formerly known as Slysoft will remove the copy protection. You will also need Clone DVD allowing you to copy the video to your hard drive or burn to a
blank DVD. The software may be cost prohibitive. Also, while standard DVDs are cheap, dual layer isn't & generally are not available to purchase off the shelf from your local
electronics store. Newegg & Amazon is recommended. Good brands are TDK & Smartbuy from Amazon & both are Ritek manufactured.
Videos on the hard drive can be watched, without burning to disc, using the free Media Player Classic, or VLC. Perhaps your son would have no problem watching on the computer
monitor instead of a big screen TV. That would save you money from not having to purchase blank discs, but you will need hard drive space to store them, either internal or
The majority of movies are typically larger than what a standard DVD SL [single layer] 4.7 GB disc can store unless you have no problem compressing it at the cost of video
quality. Most kids haven't a problem with lower video quality. Otherwise you will need DL [dual layer] discs that are 8.5 GB. All this applies only to standard DVD & not to Bluray
To burn a video, whether SL or DL, will require burning software. The free ImageBurn software will meet all your requirements.
Keep in mind that there are alternatives to all the above for creating a DVD that will play in your home DVD player.
There is a learning curve & considerable time involved. You will no doubt turn out a few coasters before getting the hang of it.
Final notes: The laws governing copying for personal use are somewhat ambiguous.
Fair Use believers argue that it should be completely legal to copy an owned DVD to back up the movie and to make it possible to watch on various devices.
However, others argue that the Digital Millennium Copyright Act has jurisdiction over fair use, which would make it illegal.
I suggest you Google a bit regarding those issues.
Last, most public libraries offer DVD rentals at no cost & at least in my area, I've found second hand stores & pawn shops offer DVDs quite inexpensively.
And definitely last, you may want to have a look at KODI for streaming. That's my Numero Uno for movies, TV shows etc.