QTComponents often crashed iTunes
Upon installing the component in my user's library directory, iTunes worked flawlessly with ogg files for a little while. After going through about 10 songs though, when I would press next track (with shuffle on), the program would freeze up and not respond, requiring a force quit. This behavior was duplicated. I uninstalled it, verified that ogg files wouldn't play, reinstalled it, they worked fine for a while, then after a bit they started locking up the program when they would be encountered in the shuffle.