That is part of the hype.  You try it.  I know from experience that a  
simple finger print will mess up playback on either CD or DVD.  I  
don't know where the notion of a whole in the CD/DVD being  
recoverable comes from but it's definitely nonsense.

Alex


On Jul 2, 2006, at 5:31 PM, phillip holmes wrote:

>> CD and DVD error detection and correction algorithms will "play"  
>> discs with
>> 2 mm diameter holes. Some DVD systems require a 6 mm defect before  
>> data loss
>> occurs, and the problem is then loss of servo lock by the read  
>> drive. Can
>> 78s do this?