Hi Terisa,
there is a bug in your code.
Consider the following filename:
2008 - Handbook of Motivation Science - Shah, James & Gardner, Wendy L. (eds)-[Guilford].pdf
It is imported as:
filename: 2008 - Handbook of Motivation Science - Shah, James & Gardner, Wendy L
Extension: (eds)-[Guilford]
This other filename:
2009 - Building Motivational Interviewing Skills - David B. Rosengren.pdf
It is imported as:
filename: 2009 - Building Motivational Interviewing Skills - David B
extension: Rosengren
You are probably searching for the first DOT from the start of the filename, while you should search for the first DOT from the end of filename... or you are using a wrong regular expression.
Also, I see that the original extension as been truncated, so you are using some kind of code were you drop everything there is in the filename after the second dot and the second dot too...
I suppose today I have lost a lot of information while importing +3000 books
(261 book with wrong/partial information which I already have deleted
)