Let me apologize if this is a stupid question but I have searched on google and on this site and have not really come up with anything so here goes the question.
I just purchased a slightly used Pronto TSU9600 and as a newbie trying to find IR codes for some of my equipment. So far the rotel rsx-1055 was easy enough to find but not sure what codeset to use for Samsung HL67A750 DLP TV, Sony CDPX777ES and Samsung DVD HD641. I have been to the one remote site and downloaded their database and I can't find it there either so what options would I have to find what codeset these devices use or do I have to just learn the codes into my device?

thanks