For all of you who have a hard drive based MP3 player do you workout or run with it? If so, have you had any problems with it? Specifically I am wondering about running with one and the effects on the hard drive from the jarring it would receive when running with it. I really like some of the hard drive based players available but I am leary of running with it. I am afraid that when I run with it it will cause the drive to crash and ultimately the player to stop working since data cannot be read from or written to it.