dv exported from premiere isn't microsoft dv, it is sony dv; why?

[codemaster]

When I export the sequence from premiere pro to a dv file, I choose "Microsoft DV AVI", but somehow, the format of the exported dv is DVCPRO, and it's fourcc is dvsd, that means it is a sony dv, not microsoft dv, and this is what I don't understand, why it is sony dv if in premiere it says it will be microsoft dv.

[jagabo]

Different DV encoder may use different fourcc codecs. Some encoder let you specify the fourcc.

http://www.fourcc.org/codecs.php

What Windows shows as the file type is just whatever Microsoft (or the codec installer) decided to call it. "DVSD" doesn't mean it was encoded with Sony's encoder.

If you go to the above site you'll see that 'DV25' is DVCPRO which varies slightly from DVSD in that it uses 4:1:1 chroma subsampling for PAL as well as NTSC (DVSD uses 4:2:0 chroma subsampling for PAL).

[codemaster]

thanks, now I understand, it's like XviD wich has an option to set the fourcc to DIVX, DX50 or XVID