Under certain conditions, the Nook Tablet will not display the covers of books on the Home screen. The problem is caused by the Nook failing to properly recognize the meta tag for the book’s cover.
For ePub books, this tag is located in the opf file in the following structure:
<package>
<metadata>
<meta name="cover" content="cover-image"/>
According to the ePub standard, the attributes in a tag may appear in any order, so the following two cases are equivalent:
<meta name="cover" content="cover-image"/>
<meta content="cover-image" name="cover"/>
However, the Nook Tablet fails to recognize the second case.
If any ePub book is created where the meta tag is constructed such that the content attribute is listed before the name attribute, as shown in the second case above, the Nook Tablet will not display the book’s cover when the book is shown on the Home screen (or in the Library under Books). Instead of displaying the book’s real cover image, the Nook displays a default cover which is gray containing the title of the book.
Workaround for the Brave-of-Heart:
If you have a copy of the calibre program, you can change the tag for any non-DRM ePub book. First, load the book into calibre, then remove the book from your Nook Tablet. Next, using caliber, highlight and right click the book, then select “Tweak ePub”. When the little window opens, click on “Explode Epub”. Using a text editor (e.g., notepad), open the opf file, find the meta tag that has “name=cover” attribute, and reposition it is so it’s listed first as shown in the first case above. Don’t rename or change anything else, and don’t remove spaces. Your content attribute may not be the same as the one shown above, but don’t change it! Then resave the file. Next, go back to the calibre window and click on the “Rebuild ePub”. When the window disappears, save the book to your Nook Tablet.
BN_AlexG
on:
random file name changes
