Recording from Napster with Replay Music: Can Napster notice that you record from it?

[any ANONYMOUS forum user]

Hi there, I was thinking of buying the Replay Music package and was hoping you could give me some advice as to whether Napster have any way of knowing if one of their members is recording tracks from their site? A friend of mine has found he has been billed for purchases that he hasn't made recently after taping tracks with replay and is concerned that they have caught on to subscribers recording tracks from them. I wondered if the tagging technology might be a give away? It's probably totally unrelated but wondered what you think?