I am trying to build on FC3 with the latest version and add support for vmnc.dll - a avi for VMware format. I have put the vmnc.dll into the /usr/local/lib/codecs and added this to /etc/codecs.conf and /usr/local/etc/mplayer/codecs.conf videocodec vmnc info "VMware video" status working fourcc VMnc driver vfw dll "vmnc.dll" out BGR24,BGR15,BGR8 query,flip It seems like it's not being detected during the configure: Enabled optional drivers: Input: ftp network edl tv matroska cdda mpdvdkit2 vcd smb Codecs: qtx xvid libdv libavcodec real xanim dshow/dmo win32 faad2 (internal) libmpeg2 liba52 mp3lib libtheora libvorbis gif Audio output: alsa esd arts oss sdl mpegpes(file) Video output: xvidix cvidix sdl vesa gif89a md5sum pnm jpeg png mpegpes(file) opengl dga xv x11 xover tga Audio filters: Disabled optional drivers: Input: tv-v4l2 tv-v4l tv-bsdbt848 live.com dvdread dvb Codecs: opendivx x264 libdts toolame libmad liblzo Audio output: sgi sun jack polyp dxr2 nas dsound win32 macosx Video output: winvidix bl zr zr2 dxr3 dxr2 directx fbdev svga caca aa ggi xmga mga xvmc directfb tdfx_vid tdfxfb 3dfx quartz Audio filters: ladspa But on playback: /usr/local/bin/mplayer install_capture.avi MPlayer 1.0pre6-3.4.2 (C) 2000-2004 MPlayer Team CPU: Intel Pentium 4/Xeon/Celeron Northwood (Family: 8, Stepping: 3) Detected cache-line size is 64 bytes CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1 Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2 66 audio & 176 video codecs Playing install_capture.avi. AVI file format detected. AVI: ODML: Building odml index (1 superindexchunks) AVI_NI: No audio stream found -> no sound. AVI: No audio stream found -> no sound. VIDEO: [VMnc] 720x400 16bpp 10.000 fps 66.9 kbps ( 8.2 kbyte/s) vo: X11 running at 1600x1200 with depth 24 and 32 bpp (":0" => local display) ========================================================================== Cannot find codec matching selected -vo and video format 0x636E4D56. Read DOCS/HTML/en/codecs.html! ========================================================================== Any ideas?