External USB drive with "red" HDD inside

OK finally I would say something about WD products Book 500gb and 1 t,2t.

I used as a Back up in all my Pc’s I have but when I try to back up is alwyas a problem

files incorrect,files not found and also files only for read and I cann’t recovery.

I waste my money in something so complicated and not easy to recover and always is missing something.

besides that I have 3 books to old 500gb,750gb,1t like obsolete models ready for the garbage?

they should star up something like recycle, buyback or discount to get a new versions or clouds.like Apple

thank you and I hope listen my coments.