Plus I cloned my Wii's NAND so I have all of the Virtual Console games and savegames, and I also dumped all of my GameCube memory cards and put everything to the Dolphin memory cards images.
Everything is cool and future-proof now!Highly recommend doing this if you have a working Wii - just install Homebrew Channel and CleanRip.
Yup, those times sound about the same as what happened with me. Plus the time spent swapping SD cards, because I couldn't get CleanRip to work with the USB drives I had at hand, only FAT32 SD cards.
Also, at every step of the way when converting ISOs to RVZ, I ran Dolphin's verification thing, just for paranoia I guess.