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Bob Friesenhahn wrote:
> On Tue, 3 Jul 2007, Steve Bougerolle wrote:
> 
>> I think I've cracked this.  It looks like these were read improperly 
>> off CD originally.  I re-read the original CDs using Windows rather 
>> than Linux (a tremendous moral defeat, that) and got back readable 
>> TIFFs that were longer than the originals and for which the directory 
>> offsets made sense.
> 
> It sounds like the Linux CD filesystem code has a bug.

Possibly, or it could be the Windows code that created the CDs originally.

However, I don't think it's that simple (either way) because I wrote 
many other files on CD around the same time and all of them read back 
fine.  It's just the TIFFs that went bad somehow.


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		TIFF and LibTiff Mailing List Archive
	LibTiff Mailing List TIFF and LibTiff Mailing List Archive July 2007 Previous Thread Next Thread Previous by Thread Next by Thread Previous by Date Next by Date Contact The TIFF Mailing List Homepage This list is run by Frank Warmerdam Archive maintained by AWare Systems	Thread 2007.07.02 18:00 "Old corrupted TIFF data - "Can not read directory count"", by Steve Bougerolle 2007.07.02 18:40 "Re: Old corrupted TIFF data - "Can not read directory count"", by Kevin Myers 2007.07.02 18:49 "Re: Old corrupted TIFF data - "Can not read directory count"", by Steve Bougerolle 2007.07.02 19:06 "Re: Old corrupted TIFF data - "Can not read directory count"", by Steve Bougerolle 2007.07.03 10:26 "Re: Old corrupted TIFF data - "Can not read directory count"", by John Aldridge 2007.07.03 17:06 "Re: Old corrupted TIFF data - "Can not read directory count"", by Steve Bougerolle 2007.07.03 18:06 "Re: Old corrupted TIFF data - "Can not read directory count"", by Bob Friesenhahn 2007.07.03 18:11 "Re: Old corrupted TIFF data - "Can not read directory count"", by Steve Bougerolle 2007.07.02 18:56 "Re: Old corrupted TIFF data - "Can not read directory count"", by Kevin Myers 2007.07.02 19:08 "Re: Old corrupted TIFF data - "Can not read directory count"", by Kevin Myers 2007.07.03 10:58 "Re: Old corrupted TIFF data - "Can not read directory count"", by Joris Van Damme 2007.07.03 18:11 "Re: Old corrupted TIFF data - "Can not read directory count"", by Steve Bougerolle Bob Friesenhahn wrote: > On Tue, 3 Jul 2007, Steve Bougerolle wrote: > >> I think I've cracked this. It looks like these were read improperly >> off CD originally. I re-read the original CDs using Windows rather >> than Linux (a tremendous moral defeat, that) and got back readable >> TIFFs that were longer than the originals and for which the directory >> offsets made sense. > > It sounds like the Linux CD filesystem code has a bug. Possibly, or it could be the Windows code that created the CDs originally. However, I don't think it's that simple (either way) because I wrote many other files on CD around the same time and all of them read back fine. It's just the TIFFs that went bad somehow.

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2007.07.03 18:11 "Re: Old corrupted TIFF data - "Can not read directory count"", by Steve Bougerolle