I guess this is no value to you at this point, having already purchased two players. Like Avguygeorge, I bought a Sony (the 9000 ES) and it has never failed to read anything except a couple of FireWire CDR's that I burned on my computer.
As far as CD, SACD, and DVD, there has been zero trouble and the image quality of this player is the finest I have ever seen. Being a photographer, that is partially what influenced me to purchase it in the first place.
Any chance that you could return the Pioneer and send the Toshiba back for the "free" fix? That would get you through your current dilemma without spending more money, until you decide what is most important for you.