Disk drive system employing effective disk surface stabilization mechanism

Abstract

A stabilization part stabilizes surface vibration of a flexible optical disk along a rotation axis direction of the optical disk by means of pressure difference of air flow created according to Bernoulli's law at a portion on which information writing/reading is performed, provided on a side of the optical disk opposite to a side on which information recording/reproducing is performed. In this case, areas are provide on the upstream side and down stream side along the disk rotation direction of the portion of the optical disk which is stabilized by said stabilization part, said areas of the optical disk not having pressure difference created thereon by the air flow.

1 .- 140 . (canceled)  
   
   
       141 . A cartridge for holding a plurality of disks, the cartridge comprising: 
 a cartridge body having a width, a depth and a height;    a plurality of disk trays arranged inside said cartridge body; and    wherein each of said plurality of disk trays has an identification part.    
   
   
       142 . The cartridge of  claim 141 , wherein each said identification part on each of said plurality of disk trays is spaced laterally along said width of said cartridge body.  
   
   
       143 . The cartridge of  claim 141 , wherein each of said plurality of disk trays has an engagement portion for sliding said disk tray in and out of said cartridge body.  
   
   
       144 . The cartridge of  claim 143 , wherein said engagement portion is an opening.  
   
   
       145 . The cartridge of  claim 144 , wherein said opening is formed in said identification part.  
   
   
       146 . The cartridge of  claim 141 , wherein said plurality of disk trays hold flexible optical disks.  
   
   
       147 . The cartridge of  claim 141 , wherein said plurality of disk trays are adapted to be identified and accessed by a disk placement mechanism.  
   
   
       148 . A cartridge for holding a plurality of disks, the cartridge comprising: 
 a cartridge body having a width, a depth and a height;    a plurality of disk trays arranged inside said cartridge body;    an identification part on each of said plurality of disk trays; and    an opening in each of said identification parts.    
   
   
       149 . The cartridge of  claim 148 , wherein each said identification part on each of said plurality of disk trays is spaced laterally along said width of said cartridge body.  
   
   
       150 . The cartridge of  claim 148 , wherein said plurality of disk trays are adapted to be identified and accessed by a disk placement mechanism.  
   
   
       151 . The cartridge of  claim 148 , wherein said plurality of disk trays hold flexible optical disks.  
   
   
       152 . A cartridge for holding a plurality of disks, the cartridge comprising: 
 a cartridge body having a width, a depth and a height;    a plurality of disk trays arranged inside said cartridge body; and    wherein each of said plurality of disk trays has an identification part, each said identification part being spaced laterally at different positions along said width of said cartridge body.    
   
   
       153 . The cartridge of  claim 152 , wherein each of said plurality of disk trays has an engagement portion for sliding said disk tray in and out of said cartridge body.  
   
   
       154 . The cartridge of  claim 153 , wherein each said engagement portion is a hole in said identification part.  
   
   
       155 . The cartridge of  claim 152 , wherein said plurality of disk trays hold flexible optical disks.  
   
   
       156 . The cartridge of  claim 152 , wherein said plurality of disk trays are adapted to be identified and accessed by a disk placement mechanism.