Hey,
it turned out that the problem runs much deeper – we tried to convert the material for a D-Cinema server (DCI compliant MXF files), and we found out that the DCI norm is extremely specific about every single detail of the whole specification, be it picture, sound and metadata – it’s not simply “converting something into an MXF wrapper”, it’s converting something into “a DCI compliant MXF container set”. If the container doesn’t comply exactly to the specs, the server simply won’t play it.
There are machines by “doremicinema” which cost about EUR 38,000 (Germany) that can only do that – get data input on one side, output DCI-compliant MXF files on the other side. That’s about all. So I guess I won’t find some free software on the net which does the same thing…
All the best,
Lasse