Despite the negative reviews here I bought the C834 and have not been disappointed. I had only been thinking the HD-Box Unitymedia to pick up, but rent, annoying fans and poor remote control have stopped me. The C834 runs with me flawlessly and silently (no fan), no crashes or incomplete recordings. The quality of the recordings is identical to the live image. Operation of the recording feature in my opinion is easy to understand and clear. A tip to the recording settings. Make the chapter length 2min best, so you can skip the advertising more quickly because the coil is quite slow. The Bildquälität convinced when connected via HDMI. Possibly related problems here with a poor signal quality (I almost always 100% signal quality / strength) or to power-hungry hard drives together (2.5 "). I have a 2.5" bought 500GB Seagate Expansion Portable. The hard drive is inaudible and is barely warm. She also goes into power-saving mode when not in use.
