In the faqs I've downloaded for the Gamecube version of MKDA, they list these koffins (CX, IY, and XW) as possessing videos of "Scorpion Goes To Hell", "MK Gold Endings", and "Baraka's Demise" respectively, but instead of receiving these videos all I got instead were different amount of koins...
plus, the amount specified by the faqs to purchase these koffins was also incorrect on my version - and in some cases the last digit of the suppossed (as described by the faqs) currency required to open the koffins had been cut off!!! i.e. koffin "IY" cost 28 Onyx koins instead of 281 Onyx koins, as stated by the faqs.

Has anyone else had similar problems?

And does anyone know a site or something where I can view the aforementioned videos?

Any help would be much obliged