http://www.storage.ibm.com/press/hdd/20010327.htm

That is the IBM announcement that contains all the real details.

48Gb sounds very nice :) It can hold almost as many albumns in wav format as my original 4Gb model can hold in mp3 format. Are we going to see lossless compression e.g. shorten support in the empeg soon?

"These efforts result in acoustical noise reduction, improved shock tolerance and superior reliability."

Sounds ideal for the empeg. IBM already had the highest shock ratings,. The new ones have :
800 G/1ms nonoperating shock
180 G/2 ms operating shock