>
> But 15 years later, British officials found the information on the discs 
> was practically inaccessible - not because the discs were corrupted, but 
> because they were no longer compatible with modern computer systems. By 
> contrast, the original Domesday Book, written on parchment in 1086, is 
> still in readable condition in England's National Archives in Kew. (The 
> multimedia version was ultimately salvaged.) "
>

http://www.popularmechanics.com/technology/industry/4201645.html

The author apparently confuses the difference between legible and readable. 
Even though the origininal Domesday Book is very well preserved and 
perfectly "legible" he fails to mention that, it too, is "practically 
inaccessible" ... as it is written in Latin and in an ofttimes confusing 
format, and for all practical purposes of the average person "reading" or 
accessing the data, it's just as inaccessible as the obsolete laser discs 
became.
"Although unique in character and invaluable to the student, scholars are 
unable to explain portions of its language and of its system. This is partly 
due to its very early date, which has placed a gulf between Domesday Book 
and later records which is difficult to bridge." - from wikipedia entry