With Converter App, you can convert M4V files into many other formats:
M4V to MP3 | M4V to MOV | M4V to AVI | M4V to MKV | M4V to WEBM | M4V to WAV | M4V to M4A | M4V to WMV
→ All M4V Converters
If you want to keep working with your final MP4, try:
MP4 to MP3 | MP4 to GIF | MP4 to JPG | MP4 to WEBM | MP4 to MOV | MP4 to DOCX | MP4 to PDF | MP4 to SRT
→ All MP4 Converters