> > ffmpeg -i checkerboard_3x3_%d.png -r 30001/1001 -pix_fmt yuv411p tmp.dv > > A question unrelated to your problem: > Why not use -r 30000/1001 ? That's the official value for 29.97fps. Because that's what Erik recommended. Hmmmm... google finds a *lot* more hits for 30000 than for 30001.