Replying to Durability of a portable hard drive (aka mp3 player)?

I know mp3 players have been talked about countless times and i know the ins and outs of just about every player on the market but my real question is directed to skiers so thats why i am asking you guys
From your experience with an mp3 player (more interested in the hard drive versions) do they seem to last after the countless hits they take from skiing. i have read a number of reviews from people saying that their mp3 player crashed on them from working out in the gym, and i dont want mine to break because i know it will take more abuse when i am hitting jumps. Do they seem to accually last or have any of you had to replace/warrenty your player because of this.
Mainly looking at 20gb versions like the Zen Touch, iPod, Dell jukebox and Phillips player