Converting Audio to Sony's ATRAC Format?

wmspringer asks: "Having recently gotten a Sony CD player, I've become increasingly frustrated with the provided SonicStage Simple Burner software. I like being able to record over 24 hours of music on one CD and the extra options atrac3plus offers, but I can't stand using the software anymore. Do slashdot readers have any suggestions as to the best software to use for burning atrac3plus format? On a related note, what is the highest data rate worth using?"