Original post by: Anthony Compton ,


I have the same issue with a WD 640 GB drive in 2 out of three MBPs.  

Unit 1: 640 GB drive stalls, Sound quit after 1 day, Apple replaced MBP
Unit 2: 640 GB drive works great but sound has high pitched squeal, Apple replaced MBP
Unit 3: 250 GB stock drive works no problem, 640 GB drive stalls, Argggggg

In all three cases I have went through all the usual support steps, safe mode, PRAM reset, Reinstall....