CD Cracking Uncovered: Protection Against Unsanctioned CD Copying (Uncovered series)
Summary Table of Characteristics of Various Interfaces
The summary table provided below shows the main characteristics of all of the methods of access described above. As can be seen from this table, the best results are produced by the method of access via ASPI, which ensures an easy, convenient , and system-independent interface for controlling storage media. The next most-positive result is produced by STPI. The main drawback of this method lies in that it is supported only by operating systems of the Windows NT family and doesn t work on Windows 9 x. The development of a custom driver looks like a good idea. Implementing such a driver for both Windows NT and Windows 9 x (by the way, WDM drivers at the source code level ensure compatibility) will ensure support for your application under both operating systems.
| CDFS | cocked | MSCDEX | ASPI | SPTI | SCSI port | mini port | own driver | IOPM | |
|---|---|---|---|---|---|---|---|---|---|
| Windows 9x | ˆ’ | ˆ’ | + | + | ˆ’ | ˆ’ | ˆ’ | + | N/a |
| Windows NT | + | + | ˆ’ | + | + | + | + | + | + |
| Requires administrative privileges | no | no | ˆ’ | no | yes | no | no | id [*] | [**] |
| Supports CDDA | yes | no | yes | yes | yes | yes | yes | yes | yes |
| Supports CD data | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Raw read from CDDA | yes | no | yes | yes | yes | yes | yes | yes | yes |
| Raw read from CD data | no | no | yes | yes | yes | yes | yes | yes | yes |
| Potentially dangerous | no | no | no | yes | no | no | no | yes | yes |
| Well documented | yes | yes | yes | yes | no | no | no | yes | no |
| Ease of use | yes | yes | no | yes | yes | yes | no | no | no |
|
[*] Here and further on, "id" means "implementation-dependent".
[**] Driver installation requires administrative privileges on the local computer; however, its subsequent use doesn t. | |||||||||