After wrestling with a timestamp issue from an older version of some DVD burner software, I ended up compiling a copy of udfct from Philips
and have now been using it to validate some of my newly burnt media.
For Imgburn 2.5.8.0 - just installed today to make sure it is the latest version, it reports one error, though I have no idea, how important or valid the report is:
This is as a result of burning a data disc from a directory tree just slightly smaller than the DVD space.
For now, I have not found anything that 'does not work' and will use the DVD, but thought it might be worth reporting the issue in any case.