THE BURNING SEA (BONUS MIX)
1999 - Unidentified Light CD - 7.22
THE BURNING SEA (ORIGINAL RE-MIX)
1999 - The Burning Sea MCD - 4.52
2009 - Odyssey Europa 4CD - 4.56
THE BURNING SEA (RETRO-ENGINEERING 1)
1999 - The Burning Sea MCD - 7.09
2009 - Odyssey Europa 2CD/4CD - 6.51
THE BURNING SEA (RETRO-ENGINEERING 1/A)
1999 - Elegy Numéro 7 CD - 6.51
THE BURNING SEA (RETRO-ENGINEERING 2)
1999 - The Burning Sea MCD - 5.08
2010 - Not Of This World 3CD - 7.23
All different versions, except Retro-Engineering 1, sometimes called 1/A or 1/a, despite the slight different length.
The Original Re-Mix was released in the same version in all the records.
The Burning Sea (Retro-Engineering 2) appeared on Not Of This World is really the Bonus Mix, even if misnamed.