Thanks Audry and Harry for your quick reply!

Audry:
I know your suggestion will work but it is not very efficient: each time I load a file I have to change Seperate Sound Setting and resave the file with the modifed Current Panel. I have to do this for thousands of files. I also have to do this each time I download new files from the internet. I am looking for a way to protect this setting but unfortunate Dataprotection and Expand Filtering does not include Seperate Sound Setting.

Harry:
I do not understand your suggestion because I never use Midi and to my opinion this has nothing to do with Midi. Maybe I am wrong but I do not have knowledge of this.

Bert

[This message has been edited by Bert Aarts (edited 01-23-2010).]