[irmar]

I have bought my Cybook Opus recently, and it's my first ereader.So, although I'm experienced in computers, I'm a novice regarding ereaders.
In the past few days, I've got myself a huge collection of ebooks, especially oldies. The ones I'm downloading right now are epub, and the - many - I had collected before were .pdf, so I'm converting them little by little with Calibre. I don't use Calibre for anything else than converting (which it does beautifully, most of the time), because I want to do my own sorting.
I deleted the library system that came with the Opus and made it to my specification. I deleted all the .pdfs, changed the folder names etc... For instance, why ebooks folder and then Digital Editions folder? They are all ebooks, right? So only one folder, called BOOKS, and then inside divided by language, then classical and contemporary, non-literary etc...

Now I have this dilemma on how to name the books for better sorting.

Fact is, I noticed that the existing epubs that came with the device were inconsistently named. The English ones had the title then the author, the other languages I speak and read (Italian, Greek, French, Spanish) all had different orders. I don't remember right now, but one was Author Surname- Name - Book Title; another Author name-Surname-birth and death dates-Book Title.
So I don't know which one to use myself now that I'm reordering my library on the PC before copying it on the Opus. Could it be that it doesn't matter?

I like my books to be by author. The logical thing would be Surname - Name - Title (for instance: Austen, Jane - Emma) It looks awkward, but lets you find them more easily. But most of the one you download from gutenberg and others are title-author. This means that all books by the same author will be scattered all over the place!
Working on my PC, I've put each language's literature into alphabetical folders, and inside those I made Author folders, and put the relevant books inside. It took me hours.
Now for the sake of finding them in the computer, things are under control. I can easily find anything I want. But now comes the hard part, for the ones to be copied in the ereader (not all of them, because I tried to and it got veeeery slow).
I have to go to each author's folder and individually rename the book. It means about 800 ebooks to rename. I am a patient person, but still I have better uses for my time, so before doing all of this I need to know, is it needed? Does the Opus read the filename just as it is after I modify it, or does it read some metadata hidden somewhere? And if yes, where is it so I can change that? Do I do it with Calibre?
In music files, it's easy enough to modify metadata: especially with Windows 7, you don't even have to right click, choose Properties and go to Details. It's all on the bottom of the Windows Explorer page (I love Win 7!). But for ebooks, Properties doesn't show anything more than the filename.

So before I waste hours and hours of time doing a tedious job, please somebody tell me how it works.