Aztech CD-ROM doesn't work with IBM Dala-3450 hard drive

This conflict may occur if the pulse width for DASP (Drive Active Slave Present) signal is incompatible with an IBM hard drive, which requires a minimum of 400ms timing. This incompatibility results in the improper detection of Aztech IDE (integrated development environment) CD-ROM (compact disc read-only memory) drive. To fix this problem update the CD-ROM's firmware, which is located at the Aztech support site.