@pcwrd13 : do you have still your issue with UT ? My last try was good for me.
I put the 0.6.11_se loader in the last DS RC5 folder version :
I'll be able to boot floigan brother, ooga booga (with echelon hack didn't try the standard version), tomjam and earl 3 and skies of arcadia with full intro.
It's impossible for me with my hdd ssd and last 0.8.23 loader even in low level (the low level is helpful only with wince games).
Sega rally 2 boots and run well with low level, without cdda, I tried the same config than 0.6 loader and same issue than default settings :
With 0.6 sega rally boot with dma sync 16 memory 0x8Cf80000 cdda no IRQ I guess and true dma tmu2, strangely if we removed IRQ the game doesn't boot with 0.8.23 loader.
I try to use 0.6 gcc 7.1 but Black screen, I guess it's not possible to use it with RC5 and cdda.
Last 0.8.23 improvements :
Spec ops 2 : ok we can shoot now, just select cdda and tmu1 my bad :
True dma, 0x8C000100 | no IRQ | boot Direct or not | DMA TMU1 | CDDA
skies of arcadia :
run with low memory but I must choose the sync 16 instead of true dma in order to be able to play the full intro.
You may right the speed of the device is important, perhaps is also because I used the japanese_cake vga patch PAL version.
Sturmwind :
Intro run well with cdda, must do not have any save in the vmu, still disc error when we start a game.
The flinstones :
run well with 0.8.20 loader :
true dma, memory 0x8CFE8000, no IRQ, CDDA TMU1
but not with 0.8.23 loader. It freezes after langage selection... Don't have tried with 0.8.21 and 0.8.22 yet. Maybe a bad memory with the last loader.
Else 0.8.23 is the best result for cdda and wince games