"why do you want to change it?"
Sorry, no big reason or anything like that. I just recenly learnt about Epub3 and was tweaking things here and there in Calibre and stumbled on this.
If you have not implemented Epub3 for News Download, that's cool, You are the expert.
Once again, Thank You for creating an excellent software.
And I am really sorry for getting your name wrong in the post above. Infact, I was worried about it and went to your site to check the spelling, but damn ...
