Thank you so much for your complete response!
I followed your suggestions of modification, and that’s working perfectly. But I realized that GD star rating uses rich snippets with microformats, and your plugin uses microdatas… In Google Structured Data Testing Tool, Google doesn’t seem to like both diferent markups. In fact, with your plugin alone, I have a better display of rich snipets with photo + cooking time + votes wich is perfect for me. My old microformat datas didn’t work correctly.
So my choice is done: I use your plugin!
Thank you!
