It has been quite a while since I last posted, but I have had similar issues with CDSD over the years. I finally gave up through frustration. It is sad to me that Digital River has reduced the Mac support to the extent that it is today. Not knocking the current Toast developers, I'm sure that if they could fix everything, they would, but they can't so what is, simply is.
Due to the many criticisms that CDSD has generated over the years, I wish that Digital River would simply eliminate CDSD and move to Soundsaver. A product much like CDSD but supported very well by Bias. Here is a link to the product:
It costs $49.95, a bit pricey, but Bias provides excellent Mac support IMHO. It may be a bit to much for many, but at least it works and interfaces well with Mac s/w and appears to do all that CDSD does plus.