That happens when the partition or the HDD runs out of space. Also, if you are saving to a network, and the network source gets shut off or interuppted, you'll get these messages too. Could also be a sign of your HDD going bad, although most newer drives have technology built in to warn you off this (S.M.A.R.T)
Who's the manufacturer of your HDD, when did you buy it? Did you do a CHKDSK?