Reply To: .mobi duplicates cover

you were on the right track. Delete all references to cover in the opf file (minus your reference to the image and the meta tag that refers to the cover and cover image, but delete the (x)html reference, the spine reference, and the guide reference if you have one) and delete the cover (x)html file as well, you wont need it. Within metadata put the code below in and just replace the cover.jpg with what every your cover name is.

Aaron