 The images were eventually extracted following many months of puzzling through the data and examining how the recording machines functioned.Another example is the BBC Domesday Project in which a survey of the nation was compiled 900 years after the Domesday Book was published.While the original Domesday Book of 1086 is still readable today, there were great fears that the discs of the 1986 Domesday Project would become unreadable as software and disk drives capable of reading the format became rarer and rarer.