Free Online MPG to OGG Converter

MPG is an extension used for files compressed with MPEG-1 or MPEG-2 standard. MPG files can be played on Windows, Mac and any mobile devices. The first versions of this format were significantly limited, supporting low video resolution and limiting data bandwidth, but latest standard updates allows it to be used even in HDTV broadcasting.

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.