Thumbnails and/or contact sheet for avi/mkv/ogm

I was looking for a program that is able to create contact sheets for video. I put in a CD, the program scans it and produces an image which contains a frame form each video (possibly not the first one which is gonna be black) with the name of the file, and maybe other infos. Anthing out there? I could do it with windows (just open the folder with explorer with thumbnail view) but the thumbnails do not work for mkv/ogm (can anyone still download the file refenced in ? ) and for avi it's the first frame, which is not good. Any help?

for MKV you can use to watch thumbnails in Explorer. Try it...it works for most people here. (Although it doesn't work for me, I 'm getting an error message everytime) For OGM/AVI there,'s no solution for thumbnails in explorer...you can use a HTPC program. Cu

Well, I can tell it's not an easy problem. I though it was because I see all these people posting vidcaps (sometimes also 4 frames in one image) but I guess there's no automatic method.... :eek:

Sleepless night... 

So, I couldn't sleep. Well, I worked a bit an produced a stupid script using bash (I have cygwin on windows) and mplayer to almost do what I what. I'd like to share it: for ff in "$@"; do /cygdrive/c/Program\ Files/mplayer/mplayer.exe -ss 15 -ao null -vo jpeg -frames 5 "$ff" ; mv 00000002.jpg "$ff.001.jpg" ; /cygdrive/c/Program\ Files/mplayer/mplayer.exe -ss 30 -ao null -vo jpeg -frames 5 "$ff" ; mv 00000002.jpg "$ff.002.jpg" ; /cygdrive/c/Program\ Files/mplayer/mplayer.exe -ss 45 -ao null -vo jpeg -frames 5 "$ff" ; mv 00000002.jpg "$ff.003.jpg" ; /cygdrive/c/Program\ Files/mplayer/mplayer.exe -ss 60 -ao null -vo jpeg -frames 5 "$ff" ; mv 00000002.jpg "$ff.004.jpg" ; /cygdrive/c/Program\ Files/mplayer/mplayer.exe "mf://$ff.*.jpg" -vo jpeg -vf tile=2:2:4:4 ; rm -f "$ff.001.jpg" "$ff.002.jpg" "$ff.003.jpg" "$ff.004.jpg"; mv 00000001.jpg "$ff.jpg"; done I use it like "./script /dir/to/videos/*" and it produces a bunch of jpgs each one with 4 frames taken at 15, 30, 45 and 60 secs. It's good because mplayer plays anything I trow at it (MKV,OGM, etc). It's bad because it's a really ugly script. I'd like to extract frames at (say) 20%, 40%, 60%, 80% of the video files, but mplayer doesn't understand percentiles. Suggestions?