Not me, but on three separate occasions, when I tell people I was playing Tri-Ace's RPG Radiata Stories they confuse it with Atlus' Radiant Historia. Both fantastic games, though.

Funny enough, that's not even the only Tri-Ace game getting confused with another RPG. Valkyrie Profile and Valkyria Chronicles get confused all time, the latter being from SEGA much later on.