Hi,
The sample of the following book has Creator file-as and Title file-as EXTH. The sample is no-DRM.
Zenyaku Genji-Monogatari (Japanese Edition) ASIN: B00BHHKABO
http://www.amazon.co.jp/%E5%85%A8%E8...89%A9%E8%AA%9E
http://www.amazon.com/Zenyaku-Genji-...s=genji+kindle
Thanks,