from memory, there isn't a DTS-MA 5.1 English track for it at all. closest to it is aa Dolby Digital 5.1 (640 kbps) on the Australian Blu-ray and a LPCM 2.0 track on the UK disc (be warned though as the first UK BD didn't have the English track, just a dubbed French track which they had to re-press)

there is also a DTS 5.1 track on the Japanese and Korean DVD's but that's the only DTS track released for it.

from what i recall on the other thread, there are a few subtle differences in timing between the two and some alternate footage as well as detailed here

http://originaltrilogy.com/forum/topic.cfm/The-Big-Blue-US-edit-1988/post/578675/#TopicPost578675

the titles are also slightly different in both cuts