Here and on other music forums, there is a lot of debate about bonus tracks and whether they enhance or detract from reissued albums. Some uber-fans want to hear every burp and fart produced in the studio, purists want only the original album with improved sound (and maybe bonus tracks on a separate disc), and others want only live tracks or only unreleased songs or only demos, etc. etc. Clearly, there are a lot of opinions out there and plenty of threads on this forum debating the topic. However, I did a search and I couldn't seem to find a thread dedicated to a discussion of which reissue series would have benefited from the inclusion of bonus tracks (demos, live tracks, studio outtakes, etc). You don't need to identify the specific bonus tracks you would include on there (though feel free to do so!), but it would be cool to hear why you think that particular release (or series of releases) would have been better with some bonus material. I'll start with the releases that inspired this thread: Can's Remastered Edition Campaign Given that Can were experimentalists in the studio (and live), I would have loved to hear some of the studio outtakes, jams, and/or extended versions associated with each album. I know that they eventually released The Lost Tapes, which covers some of these bases, but I think it might have been more interesting to hear some of this material in the context of each individual album. I wonder if they actually might have done this if those "lost" tapes had been found earlier! The idea here is not to complain about releases that already have bonus tracks. It's to identify reissues without bonus material that might have been improved if they were included.