How to split a blu-ray movie in two?

I have ripped a blu ray film (batman II) that is just too big (27ggb) to fit onto 1 blu-ray 25 ggb disc. Any idea how to split it onto 2 discs? using say…
tsmuxer and then ImgBurn ??


There are a couple of free tools, namely HDBDSplit and TsMuxer. You can also shrink (re-encode) to fit 25GB using BD Rebuilder but it’s going to be an overnight job (10+ hours) and as other shrinking program it will somehow lower the quality of the original.