Kovid,
I guess my request wasn't described very well.
As fare as I know, there is no information available to check for a "non standard" conversion. With standard I mean, what is stored in the general conversion template. In the Quality Check plugin I can find only books with a conversion in general.
I don't look for the book itself, I try to find the information that identify a conversion setup different from the standard template. In the end all books with an individual conversion setup that is stored somewhere in your database as soon as I tweak a conversion setup for a book individual.
In addition, QC works, if I remember correct, only for EPUB and maybe MOBI (last one I didn't check). I look for a more general search that works for all formats as described above (if possible)
