Download WinX DVD Ripper Platinum for free.  Valid on 1/21 only.  Here is a screenshot for your reference.  Scroll down a bit to see the download link.  Be sure to review the included readme.txt file before installing it.  WinX DVD Ripper helps rip DVD videos to popular video formats as AVI, FLV, RMVB, WMV, MOV, MPEG, MP4, etc. and supports multiple DVD sources.  It usually goes for about $29.