1.
What is a DVD?

DVDs are a form of optical storage media based on the compact disc. Originally called Digital Video Disc, and later Digital Versatile Disc, "DVD" is now used with little sense of the original terms. Essentially, a DVD is a larger, faster CD that can hold video, audio, and/or computer data. Physically similar to a CD, a single-layer, single-sided DVD has a maximum capacity of 4.7GB (about two hours of MPEG-2 video), about seven times the capacity of a CD-ROM (a normal CD holds around 650M

. A double-layer, double-sided DVD-ROM disk has thirty times the capacity of a CD-ROM (over 17G

. The DVD specification supports access rates of 600KBps to 1.3MBps.
DVD-ROM describes DVDs used as computer storage. DVD-R is a once-recordable DVD format, which requires a special drive and media, while such formats as DVD-RAM, DVD-RW, and DVD-R/RW can be written multiple times.
DVD-ROM players are capable of reading CD-ROMs, CD-I disks, and video CDs, as well as new DVD-ROMs. Most DVD players can also read CD-R disks.
2.
How to rip DVD to MP4 on Mac?
DVD to MP4 Ripper for Mac is an easy-to-use DVD Ripping application for Mac users to rip and convert DVD to MP4 video, iIt makes you can import DVD to iPod, iPhone, Apple TV, iMovie, QuickTime, iTunes, PSP and many other players.
Here is a step-by-step guide to rip DVD to MP4 on Mac OS X.
Step 1: Free download and install
DVD to MP4 ripper for mac
Intel version
PowerPC version
To install it, simply mount the .dmg archive by double-clicking it, and copy the application to your applications folder (or wherever you want).
Step 2: Load DVD to convert to MP4 video
Insert DVD into your DVD-ROM. Click "Load DVD" button to load your DVD. Just Click "Load IFO" button and press DVD folder or DVD IFO file.
Step 3: Select MP4 as output format
Use the “format” on the bottom of the window to control the output format. Click on the toggle to the right of the "Format" label to get format drop-down menu.
Step 4: Change MP4 Video and audio Settings
You can change the Resolution, Encoder, Bit rate and Frame rate of the MP4 video and Sample Rate, Channels, Encoder and Bit Rate of the MP4 Audio. The size of the MP4 file depends a lot on these settings.
Step 5: Select output directory
Expand the "Output" panel. Use the "Browse" button to select an output directory.
Step 6: Click "Start" to Rip DVD to FLV on Mac.
If you want to trim, crop, capture screen picture, merge several video clips on to one file and more editing, please go to
how to edit videos with DVD to MP4 Ripper on Mac.
What's MP4?
MP4 refers to MPEG-4 Part 14 or *.mp4, is a file format (also called container) specified as a part of the ISO/IEC MPEG-4 international standard. It is used to store media types defined by the ISO/IEC Moving Picture Experts Group, and can be used to store other media types as well. Generally speaking, MP4 is most commonly used to store digital audio and digital video streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images.
Related artilces:
How to rip DVD to MOV on Mac?
How to rip DVD to MP4 on Mac?