Originally Posted by xpect

Well I don't know what are your specific problems AnotherWorld, but since making the backup of my CD32 titles i've played from the originals in WinUAE without any incompatibility and from the same iso's with DaemonTools. And played also many isos from MagixFTp and the net without any problem with DaemonTools. Maybe someting wrong with your drive? Try DaemonTools for the isos.

EDIT - Always used Quickstart from WinUAE