Having checked Steve’s DVD master of Supplement 3, I was horrified to discover some content errors, such as a misplaced sub-title and a split second loss of image. These errors were on the MOV file I had posted to the National Film & Sound Archive 3 weeks ago. So I alerted Simon Smith who sent an email to Steve querying the nature of the error because there was nothing technically wrong with the MOV file. Steve emailed a reply explaining that we were dealing with incorrect content.