I get these messages every once in a while. The hard drive is network shared, and the iTunes library. If I leave iTunes up for a long time can it cause this or is it the sharing?
It isn't necessarily a dying drive, we get this problem at work sometimes, usually if I'm writing a lot of data to a network drive for example if I'm compiling a program thats on a network drive. It could indicate a network problem, trying again to save the same data usually is successful. So it could be either the drive or the network...
a few things that could cause this. to deal with the symptom of loosing data, could try to disable write cache until the source of problem could be found. could be bad hdd controller, driver, DMA, cable, nic and more. Drivers > Disk Drives > HDD > Properties > Policies
This is more then likly a network link speed issue. force your NIC to the correct speed and duplex rather then letting it auto detect.
you only get that msg when the disk on loacated On his pc and if i think he worded right he ways its an Shared hard disk i.e. its my hard disk on this pc thats shared (thats what it looks like) i would back up and replace the hard disk if its only one hdd thats reporting errors or you may find it just dies on you