"You've missed British copyright law basically"
True, but then I was talking about piracy. By definition, they don't generally have much respect for copyright, so the point is moot. My question was, it's so easy to copy and redistribute a conventional broadcast (as another poster pointed out, you don't even need a PC or any technical ability really), does DRM on iPlayer really plug that much of a hole?
Granted, it might put off very casual copying, but since it's trivial enough to do it from the original broadcast, even those people won't be discouraged for long if they're keen to make copies - the commercial/large scale pirates will have already found a technical way round the protection, or used the method I've suggested. The only reason to use iPlayer is if you've forgotten to record something. If you're keen enough on the show that you want to copy and keep it, I'd argue that you'd usually remember to record it. Plus, series record settings on PVR boxes and software make that an easy job these days.
So I still maitain, the DRM seems a bit of a wasted effort, and if, as the article suggests, it could restrict the available platforms and methods of delivery for iPlayer, then it's a bad thing.
To those saying "well it's what the rights holders want", then yes, fair enough, but maybe the BBC et al need to point out to them the naivety (IMHO) of their position.