Step-by-step Guide: convert M4V to MPG on Mac.
DVD Ripper Pack for Mac is designed for Mac users specially that combines both DVD Ripper for Mac and Video converter for Mac together for you to select freely. This note is on
convert M4V to MPG on Mac with DVD Ripper Pack for Mac.
Step1 : Download and install DVD Ripper Pack for Mac, then run this program.

Click Video converter for Mac and run the coverter software.
Step2 : Add Video files.
This Mac video converter supports batch conversion, it allows you to import several multimedia files so that you can convert several videos or audios at one time.
Step3 : output setting.

Choose the audio format (mp3, wav, ac3, ogg, ape) if you just want to convert audio from videos on Mac. Then elect an output format for each video file and specify a directory to save the output files.
If you don't want to use the default video and audio encoding settings, just click the
"Settings" button to set these settings.
Video: Set video encoding settings by selecting a resolution, a frame rate, a bit rate and a video encoder.
Audio: Set audio encoding settings by selecting a sample rate, an audio channel, a bit rate and an audio encoder.
Step4 : Start the conversion after finishing the output settings.

When you get ready to convert the added videos on Mac, Click the
Convert button to start conversion and then you can just go out for a walk or take a nap, and the conversion may have been finished when you come back.
Ok, with this guide, you can convert M4V to MPG on Mac. Besides M4V, With DVD Ripper Pack for Mac, you can convert video files of any type to common video formats, including FLV, MKV, MOD, WMV, ASF, MPEG1, MPEG2, MP4, 3GP, 3G2, MOV, AVI, M2TS, TOD, TS/TP (for HD Video), etc. And also enables you to convert video to audio, audio to audio with the output such as MP3, MP2, MKA, M4A, AAC, AC3, APE, OGG, etc.