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Sondar · 06-07-2011, 08:23 PM

I THINK that I've cracked the problem, which appears to be a couple of problems. Please check out what I've worked out, and tell me whether it's likely or not.

Problem 1 - file lengths

The file, on loading, is adjusted so that it cannot be more than 255 characters - thanks to kovidgoyal for that bit of information.
There are two circumstances where the full path name can grow, and I don't believe that these are taken into account:
1. If the file is converted from (say) a .pdf file to an .epub file (see example below) and
2. If the setup wizard is used to move the library from a location with a particular path "overhead" to one with a greater path "overhead", such as moving from, say, c:\files to c:\my files (the second path has a larger overhead than the first.
An actual example of the first situation, from my own library, is
The Lion, the Witch and the Wardrobe_ Re - Claudia Dutcher Tillman.pdf
The Lion, the Witch and the Wardrobe_ Re - Claudia Dutcher Tillman.epub
(the full name was "The Lion, the Witch and the Wardrobe: Reproducible Activity Book"
You can see that the original, which was the pdb file, was truncated, but when it was converted to a .epub, the title wasn't further truncated (which it should have been).
The second situation, I can't vouch for, but I can say that when I moved the library from c:.../Calibre to c:/Sony-Calibre a number of files effectively disappeared from Windows Explorer, and when I moved them back to c:\cs, they appear to have become visible again. I think there is a further complication with the directory structure, I'm coming to the belief that the 255 character limit imposed may be on the true directory, but doesn't take into account the "artificial" directory structure that is imposed if the library is dropped into one of the Windows library entries, where the full path can be greater than the path to where the file actually resides (I've found with some marginal sub-directories that I can see them in WE when I look at them from the drive ("d:\" in my case), but don't appear when I look at them from the Library in WE. This last is in effect a third case, but is tied up with the other two cases, and possibly outside of the control of the Calibre software, but is certainly a trap for young players that should be highlighted.

Problem 2 - Deleting books

And as I have to go out to see my podiatrist now, I'll get back to this later today.

Please consider

06-07-2011, 08:23 PM	#9
Sondar Member Posts: 22 Karma: 10 Join Date: Mar 2011 Location: Australia Device: Several Kindles	I THINK that I've cracked the problem, which appears to be a couple of problems. Please check out what I've worked out, and tell me whether it's likely or not. Problem 1 - file lengths The file, on loading, is adjusted so that it cannot be more than 255 characters - thanks to kovidgoyal for that bit of information. There are two circumstances where the full path name can grow, and I don't believe that these are taken into account: If the file is converted from (say) a .pdf file to an .epub file (see example below) and If the setup wizard is used to move the library from a location with a particular path "overhead" to one with a greater path "overhead", such as moving from, say, c:\files to c:\my files (the second path has a larger overhead than the first. An actual example of the first situation, from my own library, is The Lion, the Witch and the Wardrobe_ Re - Claudia Dutcher Tillman.pdf The Lion, the Witch and the Wardrobe_ Re - Claudia Dutcher Tillman.epub (the full name was "The Lion, the Witch and the Wardrobe: Reproducible Activity Book" You can see that the original, which was the pdb file, was truncated, but when it was converted to a .epub, the title wasn't further truncated (which it should have been). The second situation, I can't vouch for, but I can say that when I moved the library from c:.../Calibre to c:/Sony-Calibre a number of files effectively disappeared from Windows Explorer, and when I moved them back to c:\cs, they appear to have become visible again. I think there is a further complication with the directory structure, I'm coming to the belief that the 255 character limit imposed may be on the true directory, but doesn't take into account the "artificial" directory structure that is imposed if the library is dropped into one of the Windows library entries, where the full path can be greater than the path to where the file actually resides (I've found with some marginal sub-directories that I can see them in WE when I look at them from the drive ("d:\" in my case), but don't appear when I look at them from the Library in WE. This last is in effect a third case, but is tied up with the other two cases, and possibly outside of the control of the Calibre software, but is certainly a trap for young players that should be highlighted. Problem 2 - Deleting books And as I have to go out to see my podiatrist now, I'll get back to this later today. Please consider Last edited by Sondar; 06-07-2011 at 08:27 PM.