Hello Doug,
As far as I know, only sample sets from OrganArt Media disallow use with the CODM (and all OrganArt Media disallow it).
I believe that all sample sets from other makers do allow use with the CODM, and all that I'm aware of use names for their WAV files that should be compatible (at least for their main pipe samples), but I know of no definitive list. If relevant, and if in doubt, it's probably best to check with any candidate sample set's maker before purchasing.