[BookJunkieLI]

Originally Posted by Distorted Vision

BookJunkieLI, I fixed the issue with the underscores in the filenames by following your suggestion and dropping the foldername from the save template. I decided to abort trying to get the categories / columns to create the directory since its alot of effort to do something which I can do manually. I just do save to disc rather than send to device and copy it to the Kindle in Windows Explorer.

True, you can do this manually once you export it from Calibre into Windows Explorer however if you get to a point where you have a large collection, more than 500 books, it's much easier to do it in Calibre. This way you don't have to worry later on if you did or didn't add the extra folder especially if you go to re-upload something. It's just easier to do it all in one place.

I have unchecked 'Save cover seperately' and 'Save metadata in OPF file' so I am just copying the pdf or mobi file. Am I correct that the cover image and .opf aren't used by the Kindle and so it serves no purpose in copying them onto the device?

Actually I *think* what you are doing by unchecking those options is causing Calibre to store that information within the PDF or mobi file rather than separately. I don't have a Kindle so I have no idea if it would or would not ignore the cover and opf files.

Also still not been able to find a way to deal with the underscore in place of colon issue. I can rename the files easily all at once using Flash Renamer but the problem is that Calibre does not recognise that some of the books are on the device.

If it's already on the device I wouldn't bother renaming it. At this point the only reason to rename a file already on the device would be if you were planning to update it in some way other than just the file name. If that is the case I would delete the original from the device then re-upload it.

Also I had pretty disasterous results trying to convert all my textbooks to mobi format. I think this partly due to the fact that many contained complex mathematical equations, diagrams and tables etc.

The problem I have found is that the text in the pdf versions are too small to make reading anything more than a few paragraphs practical. Does anyone have any other suggestions. I read that there is a new PDF conversion for Calibre in development. Any news on this?

I'd ask about this in the Conversion forum. I haven't run into this issue *but* I avoid PDF whenever possible as there are a lot of inherent formatting issues with it. Particularly if the original file it was created from wasn't an actual text document but image scans of the pages grouped together. Now that is a PITA to deal with.