<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>hello</DIV>
<DIV> </DIV>
<DIV>I use this commond "streamtrack [ options ] type source tracks", and in the options</DIV>
<DIV>I add "-numbers". But I can't catch what's different between "truncate_tracks [ options ] tracks N output " and "streamtrack [ options ] type source tracks"??? </DIV>
<DIV>They also use in finding number of tracks.</DIV>
<DIV>If I only want to know some region number of tracks, what should I do??</DIV>
<DIV>thanks!!!!</DIV>
<DIV> </DIV>
<DIV>Lin yu-ting</DIV></td></tr></table>