Good-afternoon, my friends. I am using ffmpeg to make my avi files (from a digital camera: DV2100) vcd compliant. $ffmpeg -f avi -i imag0007.avi -b 1150 -ab 224 -ar 44100 -f mpeg -acodec mp2 pipa2.mpg I just wonder if tha command above is enough to make the avi files compatible with vcd standart. The way they are generated makes mpeg file with frame rate about 14. We know that ntsc should have 29.97 of frame rate. I'm tring to add these parameters: -ac 2 (to make them stereo; mono is the default option) -r 25 (or 29.97, is it really necessary?) -tvstd ntsc (I don´t know yet how could it improve the quality of my mpeg video files) -t 10 (time of duration...???) ...but, in fact, I think I just have to add "-ac" to my command line. Isn´t it? a.