Working out the wrinkles

prim88 · 10-27-2010, 02:45 PM

Thanks everyone, I downloaded calibre and finally had a chance to convert my first book. I am still about 3 wks out from my IPad and will be updating my desktop unit at the same time along with getting wi-fi. Back to conversion, when I did the conversion, it created a new folder with the .rar file (original), the ePub file (converted) also the cover .jpeg and something called metadata.opf. Does this .opf file need to be maintain in the folder with the book or can it be discarded since the conversion is finished? Thanks Bob

Manichean · 10-27-2010, 04:49 PM

Generally speaking, don't touch the Calibre library. It expects certain files to be there for certain reasons, and any interaction should go through the GUI or Calibre's command line tools. The OPF file exists because of a recently added feature that backs up metadata for each book in the books directory, creating the metadata.opf file. The intention is to be able to rebuild the library database, should it be damaged, from the libraries backed up metadata.opf files.

But seriously, don't mess with the files directly. You'll be entering, as they say, a world of hurt.

10-27-2010, 02:45 PM	#1
prim88 Junior Member Posts: 4 Karma: 10 Join Date: Oct 2010 Device: IPad	Working out the wrinkles Thanks everyone, I downloaded calibre and finally had a chance to convert my first book. I am still about 3 wks out from my IPad and will be updating my desktop unit at the same time along with getting wi-fi. Back to conversion, when I did the conversion, it created a new folder with the .rar file (original), the ePub file (converted) also the cover .jpeg and something called metadata.opf. Does this .opf file need to be maintain in the folder with the book or can it be discarded since the conversion is finished? Thanks Bob

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10-27-2010, 04:49 PM	#2
Manichean Wizard Posts: 3,130 Karma: 91256 Join Date: Feb 2008 Location: Germany Device: Cybook Gen3	Generally speaking, don't touch the Calibre library. It expects certain files to be there for certain reasons, and any interaction should go through the GUI or Calibre's command line tools. The OPF file exists because of a recently added feature that backs up metadata for each book in the books directory, creating the metadata.opf file. The intention is to be able to rebuild the library database, should it be damaged, from the libraries backed up metadata.opf files. But seriously, don't mess with the files directly. You'll be entering, as they say, a world of hurt.

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