Tag & Rename (and other tagging applications) have a wizard that will automatically fill track numbers. Keep in mind that this wizard numbers tracks in the order they appear, which is alphabetically. As long as the track number is part of the filename (e.g., Track01.flac, 01 – Title.flac), the wizard should work.You can then rename the files based on the new track tags.Update: I keep forgetting that Tag & Rename isn't freeware. I do know that Foobar2000 has this feature.
Treat them as two different albums and renumber tracks 5-8 on the second album. If you have any classical works in your library, you soon learn that organizing a file-based library around the physical CD isn't always best.
Many people also number the tracks from multiple CD sets and treat them as though from a single disc by renumbering the tracks ripped from discs 2+.
I have a release of Frank Zappa's two albums, 'Apostrophe' and Over-Nite Sensation', on a single disc. These were originally released as two different albums, so instead of having an album in my collection called 'Apostrophe/Over-Nite Sensation', I split it into two albums.
Don't worry about going through all kind of OCD gyrations
Let's say we have a split CD which contains half tracks of "Abba" and the other half "Madonna", album name is "Split". Basically I do not want to put everything of that album into one folder.I want the "Abba" stuff in \A\Abba\Split\ and the "Madonna" stuff in \M\Madonna\Split\I have a custom tag "SPLIT" which lists all the artists that are part of this release, to reconstruct all the parts of this release (because the album name "Split" isnt that unique to do that)