[CraftingGrandma]

I apologize, but I did not follow much of that.

As far as I know the information is not messed up on the reader. As it shows up when I look at the connected device in calibre and can see the cover, the author, and tags.

I plug in my sony. Start calibre and then let it load the sony into calibre. I click on the devices button and transferred over the books. When it was done. there were about 400 that transfered over but do not have the check mark for on device and have all the missing and messed up information I talked about. When I click on device and find the same book missing it's cover tags and different author name in calibres main library I see everything there and the way it should be when looking at the book in the on device button. I can see the cover in the preview panel and it's tags.

Plus all the books on my sony were originally from calibre. So everything that was there came from calibre in the first place.

As for patterns. I notice that all the changed files tat are of a .txt nature have their titles changed to the entire first line of the book. and the author is changed to the entire second line.

.pdf has the title fine, but the author names are correct except they have a 3 digit number behind the correct name.

All of the files no matter what (at least the ones that did not transfer properly without that check mark for on device) are missing their covers, tags, and series. They are all missing/blank.