DVD Burners

I am interested in adding a DVD Burner to my computer. Don't feel that it would be a major problem, have worked with electronics and computers for 35 years, But ,
What I do need is info from someone who has installed one. What do I need to convert vhs analog tape data to digital video, massage it and write it to DVD and or CD.
Also Can the CD versions be used on a DVD player or just on the computer.