I can say 'Cueballs' msi file works. Call of Duty installs fine from the one DVD. I am currently in the process of doing COD and United Offensive to the one DVD. I just need to confirm a couple of things with Cueball before I post the conversion on the CD2DVD thread and before I send the files to GCW.
And 'DarkLeftos' I would also be curious to the method you used to do your conversion. I will PM you my email address.