Hello!
I've got Hacha PC90. It is a Rockchip 2706 player with the resolution 480x272 and 4" screen. I've converted a number of videos using viDrop. Unfortunately, the playback is not smooth. From time to time the picture lags behind the sound or the opposite. Then it returns to be fine, etc.

I've tried the following settings (aslways 480x272):

800 kbps, 24 fps, MP2 128;
600 kbps, 23 fps, MP3 128.

What experience do you have? What are the best settings?
I am afraid that with 500kbps the picture will be bad.
I will very much appreciate any advice.