Is there already some code available which allows you to examine the BD playlists? Or is there someway to figure them out?

For example I just stuck a disc in and got eac3to to analyse it and it came up with
Code:
1) 00001.mpls, 00001.m2ts, 1:16:40
...
2) 00043.mpls, 00022.m2ts+00021.m2ts, 0:37:26
...
3) 00005.mpls, ...
4) 00016.mpls, ...
But looking on the disc there are 67 files in the PLAYLIST directory.

How do you break it down to identify which mpls files are the correct ones and from there which m2ts files make up that playlist?