Paul J. Wehrenberg

CD and competing technologies in an application driven environment

A representative sample of end user applications are grouped into a limited set of functional storage categories. Various existing and future storage technologies compete for territory in the resulting application/function space. Consideration of relevant factors such as current storage practice, costs, device and system capacity and performance, and technology growth paths explain the rapid growth of CD-ROM in the application space and suggest future rapid growth of write once CD-Recordable and mid to high performance rewritable optical storage.

Optical data storage and CD-recordable applications from a user's perspective

End user applications, current storage practice, costs, device and system capacity and performance, and projected growth paths interact to shape the decisions of optical storage users. These factors indicate large scale use of CD-ROM will be followed by CD-Recordable and then mid to high performance rewritable optical storage.

Improving image application performance of magneto-optic devices utilizing pre-erase

The read and write transfer rates for large image files are studied as a function of various system parameters and file sizes for a magneto-optic (MO) drive/microcomputer system. In particular, the transfer rate performance of two erase strategies are explored as a function of parameters accessible to the image application developer. Empirical studies have shown that a feature within the magneto-optic (MO) device called pre-erase used in conjunction with the Erase command can increase performance (through-put) by almost a factor of two.