cutefix, my rule is that I never completely fill a formatted partition. I am always left with 500MB of free space. The operating system then works more efficiently and lighter on the disk load. Use the entire disk for the movies partition, but, as I wrote, do not fill this formatted partition completely, leave 0.5TB of free space and it will be fine. If you are not actually using the USB ports (especially USB 3.0), you can only replace the power supply with a more powerful one and use the 7200 RPM disk (it will make a lot more noise and heat up). Still, I recommend drives from NAS, 5400 rpm. Greetings

I haven't checked it, but if the Q10 pro supports GPT partition tables, I think even a 16TB disk should work. I do not have such a large disk. My drive has a capacity of 3TB.

You welcome

Q10 Pro ma słaby zasilacz. Jak pisałem, dyski 7200 rpm potrzebuja znacznie wiecej mocy. Na pewno nic Ci nie spowolni, 

Yes It's true what you say, but honestly, only replacing the power socket will give you the long-term result. Contact spraying is only a temporary solution. If the coating on the contacts is already damaged and you need to replace the power socket in the box with a new one. In addition, a solid check under load, the power of the external power supply. The power supply must be stable at 1.6 A / 12V all the time.

Is the wi-fi antenna tightened on the back? Without the antenna, Bluetooth does not work properly. This antenna also works with bluetooth. 

Despite many problems with the firmware, I believe that Himedia Q10 Pro produces quite good sound and no equalizer correction is needed. Especially Tidal, which provides good quality songs.