At first the BD also had problems with the recording of TV program. Both ad hoc recordings as well as scheduled recordings are not saved on the internal hard disk. Validation and formatting of the operating system performed flawlessly.
Once a recording has been successfully saved times, she was gone again after 1 day.
Meanwhile work the recordings (perhaps because of a now carried out Firmware Update?).
But it remains a queasy feeling, whether the recording will work the next time.
Recordings on USB devices have operated only with a 4 GB USB flash drive.
Shooting on a 1TB USB disk or a 16GB USB flash drive not working. In the middle of the recording could not get the BD and could be made available again only by pulling the power plug.
I keep the unit now and hope to debug through future firmware updates.
I would not buy the BD-H8909S after the experience again.