I still think the best argument I saw on this topic was to use a file in a non-tamperable format (I think WMA was mentioned.)

What is it that makes WMA non-tamperable? I don't know anything about that format. Does this mean that an end user cannot create his own files in WMA format?

tanstaafl.

"There Ain't No Such Thing As A Free Lunch"
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"There Ain't No Such Thing As A Free Lunch"