Fartersoft Bulletin Board

hi just wondering why some videos play smooth and some are choppy.i use both avi and rmvb.
with rmvb the chppyness seems to ocur in videos over 100mb, also is it possible to switch audio. say i have a vid with english on the left speeker and french on the right. is it possible to just choose one

am using mini cause im using a usb 2 external
same thing happens when using an sdcard

You will have to google for audio mapping options of mplayer.