Free Online MP4 to OGG Converter
MP4
to
OGG
MP4
MPEG-4 Part 14
MP4 is an extension defined by MPEG-4 video standard and AAC audio standard. It is a container that supports all kinds of media such as video, audio, subtitles, 2D and 3D graphics. It is possible to open MP4 file with almost any player on Windows but on Mac you should use a plug-in or just convert the file to another format.
OGG
Ogg Vorbis Compressed Audio File
This format is free, which apparently is one of the reasons for its popularity. The used codecs supports variable bit rates (as a default), and .ogg files usually play back easily on all platforms. All things being equal, the sound quality exceeds that of mp3 somewhat.
How To Convert MP4 to OGG

Step 1: Upload Files
Click the upload button or drag and drop your MP4 files into the upload area.

Step 2: Convert File
Click "Convert" and wait for conversion done

Step 3: Download
Download the converted OGG file