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To: Hal Campbell who wrote (1217)	11/10/1997 10:35:00 PM
From: Sean	Read Replies (2) \| Respond to of 17679

Greetings all. I have a couple of comments on the IBMnews. Firstly, GMR is not new to the HDD community by any means. If you search around, you will find lots of information on the topic. What seems most interesting is that IBM has been able to impliment GMR into a drive so soon. I am sure that the boys (and girls) at SEG are pissed! IBM seems to really be pushing the leading edge from lab to product quickly. IMHO this could be a benefit to KM in that the other manufactureres are going to need every advantage to keep up with these kind of density gains. I'd be real curious to know who is the next closest to bringing GMR to market. The technology is really moving quickly. Second, as we do reach these density levels an interesting phenomenon takes place. The bits of recorded data become so small that the grain of the magnetic layer starts to become the limiting factor. As the bits are recorded on such little material the signals begin to loose their ability to reliably hold the signal. This is where KM becomes more than a luxury, it could become necessasary to achive higher density. This is the effect hat Jack Judy has been focusing on. This thermal stability issue is the next "wall" that magnetic recording is likely to face. KM represents at least one way to solve this problem. Regards from the PRC, Sean