well for me it's a pretty bad download play sucess rate because all the bad games work.. and all the great ones often don't work.. like 42 all time classics, that konami collection with co-op games and such , that namco collection, uhm.. i can't remember all games that doesnt work.. i have built up quite a library of games I wanna try with download play.. that hasn't worked..
(there is some exceptions, like Mario party DS Donkey kong JC(got fixed recently) , bomberman, jump ultimate stars, EBA,worms, oh and geometry wars,and some others)
