FYI:
Last week, I’ve installed openSuSE 12.2 on two laptops, one 64 bit and a 32 bit netbook. There were no problems in the installation, and I’ve immediately upgraded to kde 4.9.1 from the repos.
In amarok (and also pinkytagger, a tool for editing id3 entries of mp3 files and also some other tagging applications, I don’t remember in detail anymore) id3 entries with non-ascii characters (in my case German umlauts) have been distorted. After some googling and playing around I figured out that taglib is the culprit. Also upgrading to taglib 1.8 from the KDE:UNSTABLE:PLAYGROUND repository has not helped.
What helped was to download the taglib 1.8 sources from the official homepage
https://github.com/downloads/taglib/taglib/taglib-1.8.tar.gz
and compiling them myself helped. It worked under both the 64 bit and the 32 bit system.