You can always rip to mkv's with the option of just keeping the main movie etc, will lose menu but keep chapter skip...
No need to worry about this.
The playback order is governed by the PLAYLIST database file on the same disk.
Diogen.
ImgBurn will make the image, No luck last night with the 3D files, got the "your tv is not a 3D set" screen, didn't think about trying other cables till I had moved the PH back into the BT ...