The DriveTime Rx CD will join about a dozen other titles Halpern has mixed with subliminal message-laced tracks. A spokesperson for Inner Peace Music, the company that sells Halpern's CDs, said the titles have racked up about 750,000 sales so far. Best-sellers have been a CD that Halpern said would help accelerate learning, and another aimed at helping people achieve an ideal weight.
And then there is one that he said should never be slipped into your car's stereo.
"The one that helps you go to sleep, you should never listen to while driving," he said.