Ok Thanks Stream Recorder, the problem closing WMP is the one explained above, if the stream changes the mms URL due a tiemout (I think), WM Recorder automaticaly cancels the recording but if WMP is running, WMRecorder gets the new stream and starts automaticaly recording from it. It's a bit annoying

. So maybe the best mode is the PRO Auto but I don't know why it's not reocmended or which changes makes on the system...