[JimD]

If your hard drive was in a computer, I would say to run a diagnostic. I doubt it is skipping but you could have bad areas on the drive. Hard drives have magnetic media disks that they read and write to. If the magnetic media is physically damaged (head touch would be one way), it will not read and write to that area properly anymore. If it gets too many of these type areas, it has to be replaced. I think yours needs checked by the dealer. It sounds like it is going bad. It might be that the bad sectors could be marked and it work fine but it also might need replaced.

Jim