Hi, I'm new with mencoder and I have some few problems. Sorry if answer seems obvious for gurus but I doesn't find them in any doc. 1) Mencoder doc talks about Encoding to MPEG format but option -of mpeg doesn't work on my system (I'm using MEncoder 0.90rc2). How can I manage with this? 2) I have a problem to deal with somes ASF encoded files. I'm trying to transform these files to AVI files using 2 (or 3) pass MPEG-4 encoding. The aims is to be able to merge then after using avimerge. The problem is that mencoder segfaults on certains files at the begining of the last pass. Here is the output of the faulting pass Using GNU internationalization Original domain: messages Original dirname: /usr/share/locale Current domain: mplayer Current dirname: /usr/share/locale MEncoder 0.90rc2-3.2 (C) 2000-2002 Arpad Gereoffy (see DOCS!) CPU: Intel Pentium 4 Xeon Foster (Family: 8, Stepping: 2) CPUflags: Type: 8 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1 Reading /home/redonnet/.mplayer/codecs.conf: 49 audio & 125 video codecs Detected AVI file format! VIDEO: [FrNo] 320x240 24bpp 1000,00 fps 0,5 kbps ( 0,1 kbyte/s) Using pass3 control file: frameno.avi Reading config file /home/redonnet/.mplayer/mencoder: No such file or directory init_freetype success: format: 0 data: 0x0 - 0x11D141 Detected ASF file format! VIDEO: [MP42] 320x240 24bpp [V] filefmt:6 fourcc:0x3234504D size:320x240 fps:1000,00 ftime:=0,0010 Opening video filter: [expand=-1:-1:-1:-1:1] Expand: -1 x -1, -1 ; -1 (-1=autodetect) osd: 1 ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffmp42] vfm:ffmpeg (FFmpeg M$ MPEG-4 v2) ========================================================================== audiocodec: framecopy (format=55 chans=2 rate=22050 bits=0 bps=15774 sample=0) Writing AVI header... VDec: vo config request - 320 x 240 (preferred csp: Planar YV12) VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is undefined - no prescaling applied. videocodec: libavcodec (320x240 fourcc=58564944 [DIVX]) requested bitrate is to low could not open codec FATAL: Cannot initialize video driver! init_vo failed ext header missing, 0 left mp_image: Unknown out_fmt: 0x84B01B0 Segmentation fault I suppose there is something I missed somewhere, but what ? Or is it a bug ? If necessary, I can post 2 small video clips. One on which encoding is working and one on which its not working. Hope this descrioption is enough to help you to help me ;-) jmr