Sorry, that 2019 was my typo error, should of course have been 2010.
When you created that DVD from your photos, you created a video and the photos cannot be extracted any more directly from the video. There are programs and methods that can extract individual frames from the mpg video files. Do really need to do that and why? Can you not edit the mpg files without bothering with photo files?
Do you still have the original photo files? If yes then you should use those and completely recreate you project.
Exactly what do you want to edit? The individual photos or change sequence of photos or waht?