"Cannot Set" error message

I have a new Panasonic DMR 36ESV and just copied one of my VHS tapes to a DVD+RW.
When I try to set a chapter I get an error message on the screen that says “cannot set”
I can’t figure out why, can someone tell me?

I’m just checking here - you’re not trying to set a chapter while recording, are you? I’m not familiar with your particular model but I am sure you have to be in playback mode to set chapters - “cannot set” is the standard error message you get if the machine is recording.

No, I’m definitely in “playback” mode…Thanks

By the way, the model # is DMR-ES35V, sloppy fingers in my first post…

Any answers out there?