Putting both serials in one package would take four discs. Columbia did a wonderful job of splitting their two Batman serials across two discs each - as well as allowing not only quick access to each chapter, but also giving each chapter some chapter breaks. Also, as for the Superman...
I really think WB should issue LTGC-style 4-disc sets of the MGM cartoons. Combined, it would take 5-6 4-disc sets of around 60 cartoons each. This way, we can get a variety of T&J's, Tex Avery's, Happy Harmonies, and the rest. Include more commentaries, music/effects tracks, etc. All...