Books missing on Glowlight 3

I haven't paid a lot of attention to my Glowlight 3 for a while. When I got it I put some books on it and I've read some of those but I haven't really tried playing with it in any way since then.

I remember having the problem of books disappearing from it so I gathered 500 epub books, reset the device and copied all the books to the NOOK folder. It told me I had 438 books on board. But when I connected it again to my PC all the books were there.

Next I began going through the books one by one to see if I could find a pattern, and I did! Problem solved!

I realize that since I haven't read this forum in a while this might be old news but I didn't find anything about it with a quick look so I thought i'd report it just in case.

All the books are shown in the listings but multiple books by the same author are shown as a single book and only add one to the total. There's a setting to enable or disable this feature. I disabled it and it showed 500 books. It's working perfectly and probably was from the start, or at least since the last update I did.

Anyway if you already know about this, such is life. If you don't, now you do.

Barry