[65216] Bug report: "not a valid ISO file" {copied from codeplex}

[stadub]

I can use Microsoft's ISO-burning software to write "Memtest86-5.0.0" to a CD-R,
but when I select this file and click 'Next', I get "not a valid ISO file".
Same symptoms for "MaxBlast5.iso".
Both files are well under 0.5 GB, and my target USB-drive is 4GB.

Error-message: "not a valid ISO file", as per attached picture.

LastUpdatedDate: 2016-09-18T17:20:09.517-07:00