I should have said: I am using Linux Mint 17.1. Checking Software Manager, there do not seem to be any uninstalled plug-ins for Brasero.
Brasero offers Tools>Test integrity. Following the instructions I found on a Brasero documentation page (see: https://help.gnome.org/users/brasero...egrity.html.en
If, without specifying an MD5 checksum, I tell it to test the integrity of a disk, it tells me, "The file integrity check was performed successfully. There seem to be no corrupted files on the disk".
Which sounds good, but gives me the impression that it is not performing a checksum.
If I specify the MD5 checksum contained within the ISO image (in this instance I used the disk I recently burnt of Lubuntu 14.10) it returns the message: "The file integrity check could not be performed.You do not have the required permissions to use this drive."
I am assuming it would be desirable to do a checksum on a burnt disk. Am I just asking Brasero in the wrong way, or is there another way to skin this cat? I saw a mention of a utility called cfv, but I have no idea how it works.