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					Originally Posted by theducks  You really expect me to remember    a possible 1 or 2 out of 900+   | 
	
 You don't?
not a real e-book reader than 
 
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					Originally Posted by theducks  All I remember, was my attempt to Validate ISBN's in my collection Database (Paradox DOS), returned inconsistent results    (90% passed) 
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I vaguely remember  some non-US published books having more than 1 ('Country specific') ISBN  on the copyright page. | 
	
 I myself am not sure about the fact if I've seen dots.
spaces and --- are sure.
Every new added character will slow down the process a bit (noticeable on large number of pages to be scanned).
But I think for speeding up the process we will have to wait for the mentioned replacement of pdftohtml