Using my MZ-R50 and a blank Hi-MD disc in the/my usual method to record streamed music, with the security tab closed/recordable, the readout say's- P/B ONLY. Why, and how do you get streamed/mic'd/or? data onto the disc if it won't allow recording? Is this another "thanx a lot, Sony..." moment, or a problem with the disc, or am I blowing it somehow? Help, much appreciated!