I noticed a scheduled programme hadn't recorded, so checked the recording history and this was the entry:

Episode Title
Episode Description
Episode Number 36
Duration 0:29
Channel 1 TV1
Showing Date 5/26 7:30 pm
Expiration Date 5/28 7:30 pm
Deletion Date
Cancel Date 5/26 7:59 pm
Cancel Reason InternalError
Error String Error in Update: 0x1d0005
Quality Best
Selection Type Season Pass
State Cancelled
Size 1277 MB (estimated)

Anyone have even the slightest clue what this means??