OP and All,
Thanks for the info on preferences. I've played with these before your post, and it still appears to be no go. but, looking over your post, I probably did not toggle something correctly. I'll try again tonight.
However, DragonPlayer plays DVDs in both drives with no problem. I popped in the movie UP
in drive one and it played in DragonPlayer. I popped it into Drive two, and again, it played.
Kaffeine, Mplayer, Totem, and SMPlayer all lock up or crash when trying to play DVDs. Kaffeine does play the DVD in drive two but not in drive one. But Kaffeine does not have full functionality in drive two. If I try to skip to a chapter or jump ahead, it crashes. I'm still double checking, but when Kaffeine crashes, it takes down the audio, as well.
Kaffeine, Mplayer, Totem, and SMPlayer do play all other multimedia files.
I'll look into all this again this evening.