but here is a program to help, and has presets for your player type (vx858 clone)
http://www.mympxplayer.org/tool-vidr...ter-df821.html
also if your player is what i think it is then here is a friendly warning about your type of player
http://www.google.com/url?sa=t&clien...V4pDfk7lgHLXmQ