No, let me explain what I wanted. I have an avi video, average resolution, but the bitrate is above 2000 kbps. The same video with a bitrate of around 750 kbps plays perfectly (I converted it with my pc). I had to convert it because obviously the n800 can't handle the original video. Now my question is: the same way mplayer has the option to 'decode' the video at a reduced resolution like ace said (on the fly, meaning that the file is not previously converted, but mplayer plays it like if it already was at a lower resolution), is there any command that does the same but to decode the video at a reduced BITRATE?.
Thanks for trying vjones777 though.