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A cassette system for disks to be manufactured into hard disks for computer memory storage includes a pair of end portions and a pair of side wall portions spanning between the end portions, defining a disk receiving region. The side wall portions together define a plurality of axially aligned slots

A cassette system for disks to be manufactured into hard disks for computer memory storage includes a pair of end portions and a pair of side wall portions spanning between the end portions, defining a disk receiving region. The side wall portions together define a plurality of axially aligned slots for holding the disks. At least one of the end portions includes a test disk receiver, which may be a slot or pocket.

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What is claimed is: 1. A substrate carrier system for processing and transporting a plurality of data storage disks, the system comprising: a test disk; and a carrier including a pair of spaced apart end structures and a pair of spaced apart sidewalls extending between the end structures defining a

What is claimed is: 1. A substrate carrier system for processing and transporting a plurality of data storage disks, the system comprising: a test disk; and a carrier including a pair of spaced apart end structures and a pair of spaced apart sidewalls extending between the end structures defining a disk receiving region, each of the spaced apart sidewalls having a plurality of ridges facing into the disk receiving region so as to define a plurality of slots, each slot for receiving a separate one of the plurality of data storage disks, at least one of the end structures having a disk receiving portion for holding the test disk, wherein the disk receiving portion is a pocket defined in the at least one end structure. 2. The system of claim 1, wherein the test disk presents a periphery having a first portion with a first radius dimension and a second portion with a second radius dimension, and wherein the second radius dimension is larger than the first radius dimension. 3. The system of claim 2, wherein the test disk includes a pair of spaced apart shoulder portions, and wherein the test disk is supported through contact of the shoulder portions with the at least one end structure of the carrier when the test disk is received in the disk receiving portion. 4. The system of claim 2, wherein the first portion of the test disk comprises a generally circular main body portion and the second portion of the test disk comprises a tab portion projecting from the main body portion. 5. The system of claim 1, wherein each of the sidewalls has an upper flange with an outer edge, the outer edge of each upper flange having a plurality of laterally extending serrations formed therein. 6. The system of claim 1, wherein the each of the sidewalls includes a lower skirt portion for supporting the carrier on a surface. 7. The system of claim 6, wherein at least one of the lower skirt portions includes a positioning notch defined in a lower edge thereof. 8. A substrate carrier system for processing and transporting a plurality of data storage disks, the system comprising: a test disk; and a carrier including a pair of spaced apart end structures and a pair of spaced apart sidewalls extending between the end structures defining a disk receiving region, each of the spaced apart sidewalls having a plurality of ridges facing into the disk receiving region so as to define a plurality of slots, each slot for receiving a separate one of the plurality of data storage disks, at least one of the end structures including means for holding the test disk, wherein the means for holding the test disk includes a pocket defined in the at least one end structure. 9. The system of claim 8, wherein each end structure includes means for holding the test disk. 10. The system of claim 8, wherein the test disk presents a periphery having a first portion with a first radius dimension and a second portion with a second radius dimension, and wherein the second radius dimension is larger than the first radius dimension. 11. The system of claim 10, wherein the test disk includes a pair of spaced apart shoulder portions, and wherein the test disk is supported through contact of the shoulder portions with the at least one end structure of the carrier when the test disk is received in the means for holding the test disk. 12. The system of claim 10, wherein the first portion of the test disk comprises a generally circular main body portion and the second portion of the test disk comprises a tab portion projecting from the main body portion. 13. The system of claim 8, wherein each of the sidewalls has an upper flange with an outer edge, the outer edge of each upper flange having a plurality of laterally extending serrations formed therein. 14. The system of claim 8, wherein the each of the sidewalls includes a lower skirt portion for supporting the carrier on a surface. 15. The system of claim 14, wherein at least one of the lower skirt portions includes a positioning notch defined in a lower edge thereof. 16. A method for batch processing a plurality of data storage disks with a separate quality control test disk, the method comprising steps of: providing a carrier including a pair of spaced apart end structures and a pair of spaced apart sidewalls extending between the end structures defining a disk receiving region, each of the spaced apart sidewalls having a plurality of ridges facing into the disk receiving region so as to define a plurality of slots, at least one of the end structures including a pocket for holding the test disk; disposing a separate one of the plurality of data storage disks in each of the slots of the carrier; and disposing the test disk in the pocket.