I have done some game tests with v1.81, some games work, some do not, also it looks like there could be a few regressions...
Here is a quick summary of the tests I have done so far:
D34P01 ZELDA OCARINA MULTI PACK v1.00 - Black screen after 60hz display warning
G4SP01 The Legend of Zelda Four Swords FOR NINTENDO GAMECUBE v1.00 - Black Screen in 1.81, Ran fine in 1.80
GALP01 Super Smash Bros Melee v1.00 - Game works, but not if ISO is shrunk
GC6J01 Pokemon Colosseum v1.00 - HID not recognized by game
GC6P01 Pokemon Colosseum v1.00 - HID not recognized by game
GCBP7D Crash Bandicoot The Wrath of Cortex v1.00 - Freezes with horrible buzz noise at strange "Press start to resume" screen
GFEP01 FIRE EMBLEM GC EU v1.00 - Black Screen in 1.81, and 1.80 despite listed as ok in compatibility list
GGZP52 Madagascar v1.00 - seems to work fine
GHSP69 Harry Potter Chamber Of Secrets v1.00 - seems to work fine
GK7P01 Killer7 v1.00 - Black Screen in 1.81, Ran fine in 1.80
GLMP01 LUIGI'S MANSION v1.00 - Freezes at Nintendo logo
GM4P01 Mario Kart Double Dash! v1.00 - seems to work fine
GM8P01 Metroid Prime v1.00 - Black screen
GMSP01 Super Mario Sunshine v1.00 - Game works, but not if ISO is shrunk
GPAU01 PokemonChannelMainDisk v1.00 - Black screen
GPXP01 POKeMON BOX RUBY&SAPPHIRE v1.01 - Black screen, seems to result in no video signal on tv?
GQPP78 Spongebob Squarepants Battle for Bikini Bottom v1.00 - seems to work fine
I have also attached a .zip file containing more info on my tests so far, including two nloader.log files, my nincfg.bin, a description of my test environment (such as hardware, versions, and configurations), and a ndebug.log for every game tested.
Also...
I would like to report an issue that is troubling me a tad, but, I do not know if this is happening to anyone else, but after testing every few games or so, it appears that there is file corruption going on with my HDD. Windows would complain to "scan and fix" with checkdisk, and says it found some errors and saved the apparently erranous file chunks (they are 32kb each), as it does, but when I check these chunks in a hex editor, they appear to be bits of nloader.log and/or ndebug.log files, mashed together with other bits of data...
Could a dev working on nintendont atm please kindly check this issue out to see if it is actually nintendont causing this or just something on my end?
Another oddity I noticed is that I ended up with two nloader.log files with different content, both only 5 lines long each. I assume they are meant to have more than 5 lines of data in them?
Both are included in my attached .zip file. Could this be related to the file chunks containing what appears to be mostly nloader.log contents?
I still have a few more games that I need to test, but have run out of testing time for now. I also plan on doing further tests (such as widescreen, shrunk, and fst tests) on the working games after I have completed these initial tests for all my games. I also plan to add my results to the compatibility list once all of my tests are done. As for even further testing, I am not using my USB Gecko atm, as right now I am testing on a WiiU, but if any devs need me to retest any of my games with a USB Gecko on Wii, I can do that if requested.
However... I would like to wait until I learn more about this HDD file corruption issue I seem to be experiencing, before conducting any more tests though.