For anybody complaining about the sound card error message and lack of music in Corncob 3D or Deluxe:

A driver built into the Corncob application is created during launch and immediately deleted from the folder. This sound driver is called drvr.exe. Any driver program called drvr.exe in the corncob directory will be deleted when corncob is launched.

I've included an attachment to this post with the DRVR2.ZIP file. Just unzip the drvr2.exe into the corncob folder and add the line drvr2 in the beginning of CORNCOB.BAT. That fixes the music problem.