Megaman X Corrupted OST - Soundtrack 7 "music_cutscene01" (with intro and outro) - 10min duration 

Yea, loop on the short 50-second one is just not as good, like this one flows for the full time instead of the start-stop-restart feel.

Here is the original version (not like the unextended version, like there was a different arrangement of this before): ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ipnUpqD7c-0.html