[Matroska-general] MKV vs MP4

Steve Lhomme steve.lhomme at free.fr
Fri Oct 19 12:47:12 CEST 2007

Emanuele Fumagalli wrote:
>> Not really. It depends on what program you use to mux. For example 
>> mkvmerge leaves about 4 KB of data at the beggining in case it needs 
>> to write some more stuff later. Usually this space is not used. So 
>> modifying mkvmerge might allow saving a little more space. Other 
>> muxers may have similar things too. I think AVI-Mux GUI (from Alex 
>> Noé) is the most flexible for that.
> thanks again,
> so what is the header size you expect on a video aroun 1h:30 min ?
> On mp4 I have around 1 Mb, is that normal?

The header size is about the same for all matroska files. It should be 
around a few KB (between 4 and 8). That excludes seeking, which is 
pointless if you're just streaming, which is usually put at the end anyway.


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