1. Should I be using just one tagging system (ID3v1, ID3v2, ID3v2.3, ID3v4) or all of them? Are there others?2. Do all tracks have information in each of these tags? Should they?3. Can one track show different information in two different tags?4. How can I make them all show the same information?5. Is there any way to see exactly what is in each tag? I have FOOBAR, but there is no way (that I can see) to switch between the tags... to see, for example, what is in ID3v2, and what is in ID3v2.3.
Is there ANY way to tell if a track has different information in one tag than it has in another? Any program that would show you all of the tags separately?