I would recommend trying FabDecrypter to get the dvd uncompressed to your harddisk and then converting it to XviD or DivX

Sharing DVD's does not work very well on Limewire since you share single files not folders

More on conversion here

www.videohelp.com

I use ImTOO DVDRipper for conversion, but it's not free (You can find free conversion tools on Videohelp too)