Step-by-step Guide: How to convert Videos, Audios to MP3/MP2
4Media DPG Converter is the essential conversion tool for converting videos, audios to NDS. Follow those steps, you can easily convert all kinds of video and audio to MP3/MP2 formats, then you can appreciate pure music like in a professional music player. Before that, you can free download it and install it on your computer.
Step1: Download and run 4Media DPG Converter
Before use 4Media DPG Converter, you must download it first. If this is your first use of this program, the trial version has two limitations, you can buy full version to remove these limitations.

Step2: Add Video,Audio files to 4Media DPG Converter
Then run the 4Media DPG Converter, Click "Add" button, and select Video,Audio files in the opened dialog window. It can also support input all popular video and audio formats.

Step3: Set 4Media DPG Converter
Click "Browse" button in setting panel, select a destination folder in the opened dialog window, and click OK. You can also set Video Size, Video Quality, Audio Quality and Channels. You can even preview the video that you want to convert.

Step4: Begin to convert Videos,Audios to MP3/MP2
Click "Convert checked Items" button to convert Video to DPG. When status is 100%, the conversion is completed.

Now, I think you already know how to convert videos and audios to MP3/MP2. As for other formats of video or audios, like convert DVD, VOB to DPG, you can refer to this guide for help.