Hi There,
I didn't look at CMI_PLAY ever, but the <ratingcombo/> tag produces no stars because it's not a real tag but a sort of container of JavaScript (or also other language, as the source code is owned by Andrei) functions which allows you to interact giving &amp; displaying immediately the rating.

You should use the <rating/> tag and write down a JS function that will parse the tag's value producing stars instead of it.

I did it on OCD v5, but actually I'm rewriting my own theme for OCD v6 and I haven't completed the HTML export, but, during the weekend, if I'll find where the old OCD v5 code is, i'll post it in this topic if it could be useful for you .

Cheers
Emanuele