I have this book and wanted to replace the old tape with a cd as I'm going back to learning Turkish after a longish break. I had a look at the new Teach Yourself Turkish and it seems to be basically the same with a few corrections. I ordered the cd that belongs with the new version and so far there seems to be no difference. Having said that, it might just be easier for those that don't have a copy to buy the new book + cd course.I have several books on Turkish and I found this one the best introduction. Be prepared that some of the chapters are more intense than others.