Mechwarrior 4 - NO CD doesn't work?

I have followed the instructions by:

- downloading the officeal MechWarrior Patch #1 from Microsoft
- created the temp directory
- decrypted the game using the "unsafedisc.exe"
- changed the name of the "testme.exe" 3.3 meg file to MW4.EXE

But when I try to run the "MW4_P1ENG_NOCD.EXE" I get a message that the file is the wrong size.

So I still need to put the CD2, to make the game run.

Am I doing something wrong or is it that it just doesn't work?