As a test I have just burnt an Opensuse ISO (22022026) to a DVD using K3B and it worked OK. It was an external DVD writer - if that makes any difference.
I used to burn ISO’s to DVD quite often up until 5 years ago. I found that using a USB disc was a better way to copy the ISO. Opensuse has two suitable programmes in the OSS repo - ‘SUSE Studio Imagewriter’ and ‘Impression’ that can be used.
Neil, I am aware of other date formats ( NL uses DDMMYYYY ), but checking cat /etc/os-release | grep VERSION_ID will never do something like that. And I just wanted to point that out.
I agree with that. People should stick with the actual VERSION_ID, and not treat it as a date to be put into the locale format. Unfortunately some folk don’t agree with that.
I don’t know the technical details but some “burners” test the media before the actual writing and adjust speed or other parameters accordingly. Maybe Brasero and K3b use different tuning.