how to rip subs

[aruwin]

Any program that can rip subtitles from an avi or any video files easily??

[DereX888]

Any program that can rip subtitles from an avi or any video files easily??

from an AVI? Normally AVI files have subtitles separately (as a text file).
Your question sounds to me like you want to rip subtitles that are already "burnt-in" in the picture.
It cannot be done easily, and there are no programs that do character recognition from an AVI files with burnt-in subts and output them to text directly either.

BTW this process wouldn't be any "ripping" (you can "rip" something that already exist only) but it would be very same as scanning book's page on your scanner and outputting it as text - aka OCR, Optical Character Recognition. Hence you would be creating new subtitles, not "ripping" them.
HTH