Thank you very much to all the contributors to this thread, especially biznatch for getting it started, and Augi, for keeping it updated and quite comprehensive. Kudos.
Afterthought: Although I don't rightly need any new apps., I do have a very keen interest in FB2K thanks to your summary of its capabilities, Augi. I'll look into it, and see if I'll like using it better than Realplayer plus. Thanks again, all.