Somehow the settings under EAC->EAC Options Interface tab do weird things. Set it to "Installed External ASAPI from VOB" restart and things will work fine for awhile, then one day it no longer sees the CD. I go into the Interface settings and they will be on Native Win32 with the other two grayed out.

Just now I looked in the EAC directory, where strangely, there was a much larger size WNASPI32.DLL with a date of Jan/12/04 vs the latest in the SYSTEM32 directory which was Jul/17/02. I haven't messed with EAC for awhile and I have no idea how that file got there. I copied the DLL from the SYSTEM32 directory into the EAC directory and I was able to go back in and set the Interface to ASAPI and restart and it works again.

Someone on the forum here sent me a PM about this one time, but I don't have it anymore, so it always escapes me of what to do to fix it when it freaks out.