From GT2 to pc:
copying a directory with a few largish files went ok
From pc to GT2:
copying a directory tree to the GT2 resulted in the directory tree being created but individual files ending up in the root of the SD card.
copying an 125MB file to the GT2 went ok.
copying a 2.5GB tv recording to the GT2 resulted in a corrupt copy.
I did some more testing with my GT2/CM9:
From GT2 to pc:
copying a directory with a few largish files went ok
From pc to GT2:
copying a directory tree to the GT2 resulted in the directory tree being created but individual files ending up in the root of the SD card.
copying an 125MB file to the GT2 went ok.
copying a 2.5GB tv recording to the GT2 resulted in a corrupt copy.