No thought about it, if you want to rip a dvd, you need a software. here I will show some hot dvd ripper software, they are said great on Internet ! Let's compare it .

1, DVD Decrepter

  It's a free software, download then use it , no need to setup !

  Download from here

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 Yes , as a dvd ripper, it can remove the dvd protection and backup a dvd video to your computer as easy, but , as you see, it can't convert video to other type. What an unusefull software that if I want transfer the dvd video to iPod/iPhone, we need rip a dvd to mp4/3pg video type , we need a software not only remove the dvd protection,but also convert dvd video to mp4/3gp etc.

2, DVDx

 DVDx is a software developed by a team provide free code. anyone can download the code to compile it then rip dvd.

 Download From here

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Yes, it's a free software to rip a dvd, but that's a joy when you learn more on the official site http://www.divx.com/divx/ , you will find words :

Oh,Oh, it's not a free software ! The free version can't remove the dvd protection , you need to buying a VIP Pass and download the ultra Edition.

3, Daniusoft DVD Ripper

 It's said the best DVD Ripper softwares, that could not only rip DVD to MPEG/Xvid/AVI/ WMV or the other popular video formats , but also separate audio track from DVD file with stunning speed and amazing quality.

  Download From Here

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 But it's not a free software !  It's a sharewrae, you can download and take it a try, if meet you requirement, you can pay $39.95 .

So, if you want to rip a dvd , there is no free software can meet your requirement . It's found that there is no free software to help you use the professional functions .