The reason iTunes can't read the wav tags is that there is no such thing as a wav tag. If there is more information about the song being displayed by your program then it is stored somewhere other than a tag that is part of the wav file.
If you have notes or pictures or other info it has to be in another file that is managed by your program. That's why iTunes can't access it.
It seems unlikely you will find a program that can read and import all the "tag" info that your program has stored unless your program has the ability to export the library in some standard format.
I believe iTunes could do what you want with the compressed files as long you are using iPods. I don't think it supports other players. I'm sure other programs can produce MP3 files but iTunes is what I use so I don't know much about the other ones.
If you have notes or pictures or other info it has to be in another file that is managed by your program. That's why iTunes can't access it.
It seems unlikely you will find a program that can read and import all the "tag" info that your program has stored unless your program has the ability to export the library in some standard format.
I believe iTunes could do what you want with the compressed files as long you are using iPods. I don't think it supports other players. I'm sure other programs can produce MP3 files but iTunes is what I use so I don't know much about the other ones.