Thank you for your reply James.
In terms of the actual gold-CD-R's I totally agree. And indeed most of the current Mitsui Gold CD-R's are not working pretty well with AMQR and it is better not to use this option. I still own a couple of those, but in general they are too expensive and in terms of the MAM-A's they are pretty hard to get outside of the US. I live in Germany and because of that they are not an option for me. And you mentioned the quality is not longer worth the price. The overall quality of CD-R's went down I think.
I own a pretty good hifi equipment (spent over 24.000 Euros on it over the years because I'm a freak, hehe) and I always want to have the best possible media for solid audio recordings and backup solutions. I also found out that there are indeed slight differences in terms of sound quality. But please no voodoo like discussion over sound differences of blank media, hahaha. But for example, I always found TY-media not perfect for audio, because they sound a bit too harsh on my Marantz player. They are indeed great in terms of C1/C2 quality, but for audio recordings....ahh, not really perfect for my ears.
Thank you for your advice in terms of software and I'm going to try out the versions you mentioned. But I maybe could have some problemsto run this older version, because I use Win7 64bit. But I will give it a go together with the WIN-XP compatibility mode of the OS.