Board Thread:Questions and Answers/@comment-25144197-20161222044444/@comment-27384850-20161223023217

Right, but think of it like money in real life. If you pay with, say, a credit card, switching from the US dollar to the Japanese yen takes no effort, in fact I do it all the time. Currency conversion is simple, and the same applies for games since currency is simply data, much like skills (Kirito's transferred over from SAO to ALO as well).

Now, as for items, those are far more complicated. Those are made up of meshes and textures, and if the correct combination of mesh and texture does not exist under the same file name and type as it did in a previous game (SAO) it will appear corrupt in the new game (ALO). This is why his items showed up as corrupted, while his currency was transferred over with no problem.