i dont know if anyone watch's mythbusters but if they do did you see the episode where they tried shattering a cd in cd drive? They said it was busted meaning impossible well i just proved them wrong.
If they really did say that, they're fuckin' morons. I've seen a few cases of it happening myself. If the CD is cracked, old or cheaply made it can shatter at high speeds. That's one of the reason many Sony 52x drives require you to hold down the eject button for 5secs before it will actually operate at 52x.
I say, send the drive in to Mythbusters along with a letter telling them they're full of shit.
Also, this 'problem' is not limited to Samsung drives. It can happen in any high speed drive... Though I can understand your frustration that they haven't bothered to get back to you on this.