Ripping subtitles in linux

[helix89]

Hi.
How do i rip subtitles in linux from dvd? I tried mencoder/mplayer but this can't extract subtitle properly. (mencoder dvd://1 -dvd-device test.iso -nosound -ovc frameno -o /dev/null -vobsubout test -sid 2). Lots of subtitle timecodes are corrupted.
It would be great if it could rip directly from image files.
Which solutions exits?

[SledgeHammer_999]

Results from google:

1.A guide mentioning guite a few tools for different subtitle related jobs-->link (http://www.linux.com/archive/feature/125978)
2.CLI tool for extracting to vobsub-->link (http://subtitleripper.sourceforge.net/).

Never tried sub ripping on linux though