I think you chose randomly without really thinking about what you'll need, or what the IOS you selected are.
IOS247 -> d2x v8 final base56
IOS248 -> d2x v8 final base57
IOS249 -> d2x v10 beta52 base56
IOS250 -> d2x v10 beta52 base57
these are duplicate.
v8 final and v10 r52 are only renamed version. they are identical and have the same compatibility.
installing the same base of both v8 and v10 is therefore useless. look at the wiki page, they are in the same column as they are the same cIOS.
at least, you could try different bases (I removed v10 entirely, these are useless to install):
IOS247 -> d2x v8 final base38
IOS248 -> d2x v8 final base53
IOS249 -> d2x v8 final base56
IOS250 -> d2x v8 final base57
as for having a r53, that's a good idea! as some games are not compatible with r53 (just dance) but work fine with r52, so installing it in slot251 is a good idea.
What's a bad idea is using base58 which has a very poor compatibility with games.
if you test a game with v10 r53 base58, you won't know what the problem is ! either v10 r53 or base58 or both ?
personally, I would install :
IOS250 -> d2x v8 final base57
IOS251 -> d2x v10 beta53-alt base 57
that way, you have identical base to compare compatibility with the cIOS version.
both 250 and 251 use base57, now you can check whether a game work with r53 or not and don't have to worry whether it's a problem with poor IOS58 compatibility or not.
it's only one of a good way to test.
there are other ways to properly test, like having :
d2x v8 final base58
you don't have that cIOS version + base58 at all. some game work with 53 or 58 but not 56 or 57 (spongebob boating bash)
but base53 should be very very rarely required as "unique working base". other bases should work too.
About rev19 :
you'll only have base57.
some game would work fine only with base38.
so, if you test a game with rev19 and it doesn't work, you can't really confirm that rev19 doesn't work at all. only that rev19base57 didn't work, but you don't know if rev19Otherbase are working until you try them all. only then you could mark rev19 as not working.
It's a lot of test to properly fill and fix the wiki table.
as I know you can't do all these bases for each IOS version, just add in the comment column the base you tried with each cIOS version. (still lot of work, but less than having to test all possible combinations)
up to you to decide which slot to use.
Now, for your tests, in order of common usage:
try both base57 and base56.
if a game work with both, there is nothing to tell or mention. mark the game as working.
if it works only with one (either 56 or 57), then mention the base you tried and their compatibility in the comment.
if none worked, now you can start trying other bases.
if no base worked with d2x v8, now you can try rev17, rev19, rev20, rev21, d2x v4, etc. (yeah, they are not part of the wiki compatibility table, doesn't prevent to mention it in "other version" column and in the comment if you find the one working)
in fact, v10 r53 is kind of a bonus. I doubt it would have better compatibility if all other tests failed, on the contrary. it will have less compatibility.
but as some users still use that version, knowing that a game is not compatible with it, but work with others will help.
don't tell me that i have to put all nand folders inside main directory...
unfortunately, old cIOS didn't allow subfolders for redirected NAND.
it's explained on the wiki, at the top, that you'll need specific setup to comply with old version if you want to use them.
alternative is to not use old version, and use neek instead. neek will work with 99% of games. (not all, it's not a miracle solution)
Alright, i launched neek system, but it's strange, i have no "region free" option.
the menu has more page, I think you change page with +/- on the wiimote.
