Most DVD ripping software is not free, some free DVD ripping software is not easy to use, or cann't rip to some formats. So, I will recommend overyone a DVD ripping software which is not only free but also easy to use.
Many movie DVDs has copy protection, if you want to rip it to your hard disk, you must decrypt the copyright protected dvd first. My friends recommend me to use "
E.M. Free DVD Copy". I have tried it, I found the ripped video quality was excellent, and the software was very easiy to use, so I recommend it to veryone.
"E.M. Free DVD Copy" can help you easily rip DVD to many popular formats, such as mp4, 3gp, flv,h264, Xvid, MOV, VOB, Mpeg, Mpeg4, Mpeg TS, AVI, WMV. so you can watch dvd movies on portable players like iPod, iPhone, PSP, Zune, etc.
1.Download
E.M. Free DVD Copy 
2.Insert DVD disc to DVD drive. then, Run E.M. Free DVD Copy, and select “Rip” mode, the ripper will running, If it has more than 2 DVD source, Please select a DVD that you want to rip.
3.When the E.M.Free DVD Ripper running, you'll be asked to select a video format that you want to rip; Please select a suitable format. Such as iPod, iPhone, PSP, Zune etc.
4. Select suitable Audio track, Subtitle, Angle, Deinterlace, then click the "OK" button.
5.Click "Rip now", E.M. Free DVD Copy will start ripping.
6. After you clicking "Rip now", "E.M. Free DVD Copy" will display a progress bar, as shown in following figure. You can click “Stop” to cancel ripping.
