This guide will show you how to convert DVD to all popular audio formats like MP3, M4A, WMA, WAV, AAC, etc. with iMoviesoft DVD Audio Converter
Steps:
step 1. Download and install iMoviesoft DVD Audio Converter

step 2. Add DVDs.
There are two methods for you to add DVD:

step 3. Select your aiming Profile and Output Folder for your DVD
step 4. Adjust the Audio Parameters if you want.
step 5. Click “Start” button to begin the conversion.
Tips: You can pause, stop and continue smoothly when converting.
Further Edit:
Two ways for trim

Audio Parameters
You can adjust different parameters of audio including Channel, Sample Rate, Channel, Audio Bitrate, Audio Codecs
Besides above edit functions, you can merge several audios into one output file.
Hopefully you can enjoy your videos on your iPhone with the help of iMoviesoft DVD Audio Converter
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