sev wrote:What if scummvm is on unwrittable media such as CD?
In that particular case, it's probably not a newbie making the CD and would know how to use -c. At least, I always had a LNK, PIF, BAT or a CD autostart menu using -c on my CDs.
A similar problem (actually it's not a problem either, just slightly inconvenient) exists for the save path, you don't use the defaults when running from a CD.
Both are easy solved with simple command line options.
A newbie's first thing to try is hardly burning a CD. He simply would install ScummVM, adds one or more games and plays them with the default settings.
And that is it all about. Those default settings should be foolproof.
Also I wouldn't appreciate a registry version. As mentioned, if you reinstall Windows, it's gone. ScummVM is about portability, and an INI file can be simply copied (and backupped), while the registry really is limited to advanced users, and in no way foolproof to edit.