Found a small problem ->
Currently I play intense Secret of Evermore German PAL Rom up and down plus speedrun tricks and its all fine working.
But, the 'Real Save files' are NOT working and gets corrupt Black screen, only 'Save State and Auto Save' is working mostly perfect. I know some speedrun glitches produce save file errors for Evermore, but I was testing more than one time.
Its not a big problem since save state works fine.
A second test from Mario RPG where I am on Chapter 3 (~5hours gameplay time), the Real Save File was working !
Donkey Kong Country 1 PAL was making trouble, read test notes. Super Metroid is working perfect so far.
Secret of Evermore PAL German :
Real Save files = NOT Working, Black Screen (some speedrun glitches also produce save file errors on original cartridge)
Save State and Auto Save = WORKING (complete working from start to end, plus speedrun glitch's working)
The game was NOT crash one time, wow ! On original cartridge the game like to crash.
Super Mario RPG NTSC US :
Real Save files = WORKING
Save State and Auto Save = WORKING
Donkey Kong Country 1 PAL :
Real Save files = MISSING in first try (read notes ! its also working but skirmish)
Save State and Auto Save = WORKING (on world 1 with 14%)
Note : After force to get 'game over' title and RESET the Rom 3 times, the Real Save file was there and working.
Super Metroid PAL German :
Real Save files = WORKING (beginning ship landing)
Save State and Auto Save = WORKING
Million thanks, Metroid is perfect, one of my most favorite games, love it.
*
New Test Secret of Mana 2 German Patch Rom music + sound problem ->
There are only some small music samplers that are incorrect working, and this problem is not on all music tracks. So its good Playable ! (JAP NTSC Rom same result) (Trails of Mana Switch Rom = Working so far)
New Test Secret of Mana 1 music + sound problem ->
The music score on all tracks are total bad incorrect working, not good, sadly. (also US NTSC Rom + JAP NTSC Rom)