Error burning pics/video to DVD

Can you put these images in folders all into a Folder in Finder? If so, here's something to try: In The File menu from Disk Utility, you can make a "New Image>Blank Image," and save that to the Desktop, or somewhere. This will produce a single .dmg disk image which will also show as a thing named "Untitled" that will appear like a new disk drive and which opens like any folder or drive. Then you pull your folders of images into that "drive." Then drag the .dmg file onto the DVD. It's possible that the DVD software will burn this without looking for errors. If it works, you can open it and see if everything is OK.

When you're sure, you will want to trash the .dmg file from your Mac-- it's like having an additional version of all those files.

How are you getting the photos from your iPhone to your Mac?

Have you tried putting batches of the photos in folders and adding those folders to the DVD to be burned?

Additionally: is this your only backup for the photos? I suggest you use Time Machine to backup your MBP which will also get the photos in your Photos library.

Please describe what steps you are taking on the way to burning the disc and where you hit the issue with the duplicate (names?). That may help somebody here suggest a bypass.

You're welcome.