Why is verify supported only for ISO9660?



Background - I generally burn large files (>2GB) to DVD, so that means I have to use the UDF file format. Although I can select the “verify” option, this actually only applies to ISO9660 compilations, according to the manual.

Can someone please explain why the verify option is only for ISO9660?

Is there a valid technical reason why UDF burns cannot be verified???

Thanks in advance