How to rip/convert DVD to MP4 format for iPod, iPhone, iPad

I downloaded Holeesoft DVD Ripper to convert my DVD disc to other video formats for playback on iPod, iPhone, HDTV, PSP, Xbox 360, etc. How do you think about the Holeesoft DVD Ripper.
Holeesoft DVD Ripper Main Functions
1. Convert DVD to video format like MP4, WMV, RMVB, RM, 3GP, 3G2, AVI, MPG, MPEG, FLV, AMR, etc.
2. Rip DVD to audio formats like MP3, AAC, AC3, M4A, OGG, WMA, WAV, MP2
3. Output Devices Supported: iPod, iPhone, iPad, Apple TV, Xbox, PSP, PS3, BlackBerry, iRiver, Zune and more.