That process is not deficient when we're talking about downloads. Last year, as an example, Rogers delivered 2,400,000 notices to end users. That process is working very well when we're talking about people who download copyrighted content.
What it doesn't work for is streaming, and streaming has arisen as the most-used way for consumers to access pirated content since the Copyright Act was brought in five years ago. It's the detection of streaming that doesn't work in a notice and notice context, and therefore it is not a useful method.