[Matroska-users] "Unknown/unsupported FourCC 's263' " when trying to package 3gp

[startx]

hello.

wenn i try to add an .3gp video file to a matroska container

$ mkvmerge -o tt.mkv incoming/1242819167.3gp

i get this error:

mkvmerge v2.7.0 ('Do It Again') built on Apr 19 2009 21:37:34
'incoming/1242819167.3gp': Using the Quicktime/MP4 demultiplexer.
Warning: Quicktime/MP4 reader: Unknown/unsupported FourCC 's263' for
track 1. 
Warning: Quicktime/MP4 reader: Unknown/unsupported FourCC
'samr' for track 2. 
Warning: 'incoming/1242819167.3gp': No tracks will
be copied from this file. This usually indicates a mistake in the
command line. Error: No streams to output were found. Aborting.

This is on Debian/GNU Lenny (5.0).

has anybody seen this before and what does it mean. maybe somebody can
point me in a direction to search for a solution

startx