Book loading fails odd way

[pokkis]

I'm loading epub books from Calibre to my Touch.
Some times it fails odd way, when loading book, it loads it fine but removes another book from same author. If i try to load removed book, it loads fine but removes previously loaded book. Looks like system does not like to keep both at same time in Touch.
It happens constantly with certain books.
SW version is latest one for Touch and Calibre.
Any idea what could be issue?

[DNSB]

Originally Posted by pokkis

I'm loading epub books from Calibre to my Touch.
Some times it fails odd way, when loading book, it loads it fine but removes another book from same author. If i try to load removed book, it loads fine but removes previously loaded book. Looks like system does not like to keep both at same time in Touch.
It happens constantly with certain books.
SW version is latest one for Touch and Calibre.
Any idea what could be issue?

The few times I've seen that issue were once when the metadata was screwed up so the two books had the same title and author sort, the other two times, the database had been corrupted and I used sign-out/sign-in to create a new database. You might want to try modifying the metadata for one of the two books and see if both will load then. The database functions of davidfor's Kobo Utilities included an integrity check for database errors or you can try a newer SQLite utility to check for corruption.

[davidfor]

I think it is more likely you have the save template producing the same file name for multiple books. My guess would be the save template looks something like one of the following:

{author_sort}/{authors}
{author_sort}/{series} - {authors}

There isn't enough in either of those to uniquely identity a book. The first one means you will only have one book by an author on the device, the second, only one book per series for the author.

My save template is:

{author_sort}/{title} - {authors}

That is unique enough unless you allow duplicates in your calibre library or have multiple editions or something like that.

The save template is in the configuration of the driver. You can access this through the Plugins section of the preferences, or by right-clicking on the device button when the device is connected.

[DNSB]

Originally Posted by davidfor

I think it is more likely you have the save template producing the same file name for multiple books. My guess would be the save template looks something like one of the following:

{author_sort}/{authors}
{author_sort}/{series} - {authors}

There isn't enough in either of those to uniquely identity a book. The first one means you will only have one book by an author on the device, the second, only one book per series for the author.

My save template is:

{author_sort}/{title} - {authors}

That is unique enough unless you allow duplicates in your calibre library or have multiple editions or something like that.

The save template is in the configuration of the driver. You can access this through the Plugins section of the preferences, or by right-clicking on the device button when the device is connected.

I thought about that possibility as I made that mistake when I first started using Calibre and modified the save to device template but then my modification would only let me save one book per author(s) while the OP seems to say he can have multiple books by the same author but certain pairs of books will only save one book.

AFAIR, the default Calibre save to device template is:

{author_sort}/{title}/{title} - {authors}

while my current save to disk template is:

eLibris/{author_sort}/{title} - {author_sort}

to basically place all sideloaded ebooks into a single directory in the root of the storage.

[pokkis]

Thanks guys, updating sort to title helped, for some reason i had earlier updated it to pubdate (which was set to year only.
Now it works.

[DNSB]

Originally Posted by pokkis

Thanks guys, updating sort to title helped, for some reason i had earlier updated it to pubdate (which was set to year only.
Now it works.

If two books by the same author(s) has the same pubdate, Calibre would give them the same filename which makes sense of your problem. Nasty little computers doing what we tell them to do instead of what we wanted them to do.