Never have I experienced worse drives than those made by Connor Peripherals Inc. I've had them fail on many occasions—they'd fail if so much as to look at them.
I recall one instance where I'd spent hours setting up my computer and all was OK only to drop a small manual onto the table from a few inches height. The next thing that happened was the OS chucked an 'Abort, Retry or Ignore' message. Drive was completely dead.