[martindiv]

I am trying to add over 900 books to Calibre and I am having some serious issues. I am using Calibre 0.7.9 on Gentoo Linux.

In preferences, Add/Save, Adding Books: I have "Read metadata only from filename" checked. I also have the following regular expression:

(?P<author>.+?) - ((?P<series>.+?) - (?P<series_index>[0-9]+)-|)(?P<title>.+)

I have tested this expression against nearly 50 different titles I am trying to add and it works every time. When I try to add books either from "Add books from a single Directory" or "Add books from directories, including sub directories (Multiple books per directory, assume every book file is a different book)" the regular expression is ignored and the title gets added with the entire filename in the title column and the author set as Unknown.

I also get the following error when I try to add a book:

WARNING: Failed to read metadata: Failed to read metadata from the following:

Anthony,Piers_-_Adept_-_01-Split_Infinity.doc
Traceback (most recent call last):
  File "/usr/lib/calibre/calibre/gui2/add.py", line 176, in add
    mi = MetaInformation(OPF(opf))
  File "/usr/lib/calibre/calibre/ebooks/metadata/opf2.py", line 474, in __init__
    raise ValueError('Empty file: '+getattr(stream, 'name', 'stream'))
ValueError: Empty file: /tmp/calibre_0.7.9_3i1lgI_rm_worker/0.opf

So, it obvious that calibre is completely ignoring the preferences I have set up. Is there some trick I need to use in order to get this to work?