Well the Andy Ash track was released first, so chances are Rayko thought he could do a better job with the sample. Or it's just a big coincidence.
Trance-MB
It's not the first time this happens, Apotheosis - O Fortuna vs Fortuna - Oh Fortuna in the early 90's is one I still remember. Special about those were that both tracks got banned.
Tweak
2 producers borrowed heavily from an old disco track maybe, big deal?
-FSP-
well it seems like they were sampled. this happens a lot. Sure it could be a ripoff, but when you build around a sample, i think 2 producers working on the song will have similar results.