Catalina: Burning Image to CD/DVD

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The Problem

With Catalina 10.15.3, burning CDs or DVDs is b0rken. Finder keeps complaining, the image isn't OK.

The Solution

Screw the UI. Try this:

$ hdiutil burn debian-mac-10.3.0-i386-netinst.iso 
Please insert a disc: 
Preparing data for burn
Opening session
Opening track
Writing track
..................................................................................................................
Closing track
..................................................................................................................
Closing session
...................................................................................................................
Finishing burn
Verifying burn...
Verifying
...................................................................................................................
Burn completed successfully
...................................................................................................................
hdiutil: burn: completed
$