As I'm interested in how the actual CD protection is done in SD, I wrote a replacement Wnaspi.dll that redirects the call to the real Wnaspi.dll but logs whatever info I want.

However, SD didn't seem to be calling SendASPI32Command from my dll. I wasn't able to perform more detailed debugging to see what was going on as my Win98 decided to go FUBAR on me GRMF!

Anyway before writing that lib, I did some hacking with SI and I'm sure it was using SendASPI32Command from Wnaspi.dll (bpm LoadLibraryA X ; wait till it loads Wnaspi, then bpm SendASPI32Command X)


Does anybody know of a decent description of what SD actual issues to the CD drive?!