It's amazing what you can accomplish when you write your assembler
operands in the correct order.  My version of FN SetupAIFFHeader didn't
work because I was trying to push parameters onto the stack like this:

`  move.w  -(sp),^fRefNum%

when I should have been doing it like this:

`  move.w  ^fRefNum%,-(sp)

I've done enough of these that I should have seen this glaring
error--but I spent hours staring at it before the light bulb came on.
Duh.

So having solved that problem, I quickly got my program to record
CD-compatible AIFF sounds, and am now the proud father of my first audio
CD made from snippets of sounds originally recorded on cassette tape.

Thanks to everyone for responding.

-  Rick