Well, as most of you know, I'm well on record for disliking Nintendo's policies and methods regarding their Digital Distribution methods, but this is amazing...
Also, as most of you know, my original Wii died and was replaced by Nintendo - and all of my data on my Wii was lost.
So, back when all the crap when down, Nintendo was "kind" enough to transfer my Wii Shop account from my original Wii to my replacement Wii. While this did transfer my Wii Points, download history and my ability to re-download every title, this did *not* transfer the ability to actually play the games I had already downloaded. Any games I had saved on my SD card (which was all of them) could not be played - they had to be re-downloaded first.
Well, I've accepted this, all this time - and as I've wanted to go back and play the random title, I've just went in and re-downloaded them one-on-one. So, this is how it works:
If the game is already saved on the SD card, I cannot re-download it directly to the SD card (duh), only to the system itself. Then, I can launch it from the SD card or from the system. Then, I've got the game on the Wii's system memory and the SD card - so, at some point, I have to clean out the fridge and delete the games from the system's memory.
Today, I had free time while watching some 60's Batman and I decided to go in and re-download all my games, so they'd be available. It took quite a bit of time, but I did it - re-downloading every title that I purchased before my Wii died (as I had no idea which titles I had re-downloaded and the only other option would be to try to launch each and every title, one by one).
So, I went in, re-downloaded everything (occasionally having to go into Data Management to delete some titles in order to have room for the rest of them). Once everything was downloaded, I spot-checked a few titles on my SD card to make sure the ones I re-downloaded would run - everything I tried worked perfectly.
So, one last trip in to Data Management to delete all the games from the system. Then, back to my SD card to actually try to play one....
"This channel cannot be launched on this Wii Console."
This was one of the exact games I tested - that worked.
So, apparently, the games I had already downloaded onto my SD card can only be played if I also have them downloaded onto my system - and I can't copy the SD versions back onto my system either.
So, now, I have to go into data management, delete the individual titles, then go back into the Wii Shop and re-download them again-again.
Physical media - all the way.