[quote name='crunchewy']Thanks for all that help! Maybe I'm trying to move saves incorrectly, though, as I got some sort of warning about it going to change all the files to have my account as the owner. Or something like that. Also, is there a way to move all your data for your games at once? It seemed I had to move every bit for each game individually. For instance there were saved tracks for Trials HD, each as their own file - I had to select and move them one at a time. I gave up on that. Also some games didn't seem to have a normal save file, so that was confusing. I think Trials HD might have been one of them, but this was as week ago or so, so I'm probably mixing some of this up.[/QUOTE]
If you see individual save and track files then I think you are drilling down one level too far when trying to copy the game content. You only need to highlight the name of the game and hit "Y" to copy all content for that game.
With the new update it makes it very easy to Move content. You just highlight the device, hit "Y" and it brings up a screen and lets you easily select/deselect all items in catagories such as Games, Profiles, Demos, Videos. You can even drill down into each category and check off certain games/profiles/videos that you want to move.
Unfortunately if you want to Copy your content you have to do the same old method. Select Games, highlight the game you want to copy and hit "Y" then select "Copy" and it will copy everything over. If you see individual save files and DLC files you went one level too far by hitting "A". You want to hit "Y" where it says For Example "Gears of War", not drill down into where you can see "Gears Save File", "Gears Map Pack 1", "Gears Character Pack DLC".
There are still some games that do not let you copy or move your save file though. Also if you have save games under 4 or 5 different GamerTags and all tags are not present on the HD then I do not believe it will allow you to move that content. The GT that "owns" the save file must be present.