All data is being saved in these very moments.
I installed the two old discs in the new DS.
Now I can get the data out to other discs with NTFS partitions.
Next job is to install the new discs back in the new DS and then copy the data to the new DS.
I don't like the idea of having data on discs that is not compatible with comon discsystems when things goes wrong...
But when it works it's ok...