If they have a PC, send those files and suggest they play them with VLC PLAYER.
If you want to try your hand at creating a VIDEO DVD then you know you need more software. I use DVD FLICK.
If you are having trouble burning files to DVD, I suggest you use http://cdburnerxp.se/en/home since it has tutorials and more.
I am trying to send home movies to a friend. They were recorded onto an SD card on another friend's camera. They are in an MTS file that I know have on my computer but when I try to burn them using windows explorer, it "burns" for 30 minutes and then says files not recognized and the disk is blank when I try to read it. What am i doing wrong?