As confirmed in other forums,
Apple - Support - Discussions - Just installed 10.5.2 and DVD Player ...
Be warned that os 10.5.2 Grahic Update will make the native DVD reader hang forever, untill you have to force a shutdown with te power button...
Until they release an udate (which I hope they do....), I have to use VLC player....I tried to search for the issue on ehmac, but could not find it...
Sorry if this has been posted....if not, let our Apple geniuses know !!!
Cheers
JF