Help: Error with *some* SNES roms...

[seph]

Okay, here's the situation so far:

- I have updated my LifeDrive to 2.0.
- Installed LJP 1.0 RC2 and a few roms:
---- Bomberman 2 : SNES
---- Super Mario World : SNES
---- Mario's 1 and 3 : NES
---- Ninja Turtles 3 : NES
- I have almost no other apps on my LD (to assure you I have no memory-hungry apps) and the ones I do have are freeware like Yahdice (great game btw)
- Installed UDMH, considering purchasing it even
- Installed UnCache
- Installed DBCacheTool and DALauncher

I have done the "Last Mile" tricks such as clearing cache, soft resetting, clearing cache again, running UDMH, and playing LJP. This works most of the time.

The problem I encounter is that certain games for SNES play on a blank screen. As in, they literally do not produce any sound or graphics (besides the occassional flicker of some darkred/black colour) and no keys or combination thereof seem to change this.

I have changed SNES to run on C code, *not* ASM. This still does not fix this problem. Also, this seems to happen with certain programs only. These are all the games I have tried for SNES and are categorized as working or not:

Do Work:
Super Bomberman 2
Super Mario RPG
Mortal Kombat
Mortal Kombat 3

Do NOT Work:
The 7th Saga
Super Mario World


I do not understand why certain roms do work, and certain ones do not, and I have searched for clues on this forum and no help yet. So here I am posting. Please do not disregard this so quickly as I have seen done to a similar thread below! I have given much information and am willing to whatever else is needed to know to fix this problem. I am almost just as willing to completely hard-reset and erase everything to start with a fresh LifeDrive memory, as to make SURE that its not because of previously installed programs. Please help!!

[seph]

Update:

I do not remember where I downloaded this .zip file from, but I found that when I put the "7th saga.zip" file directly in the "roms/" folder of SNES, it works! I am ecstatic! But I cannot remember where I found this as to find a similar .zip file for Super Mario World... Hopefully this will work =)

[Menchi]

:)Well, I think some compression tools dont work well... better to use winzip, winrar or even the 'send to->zip folder' option in windows. Even if they are 'correct compressed' because u can open it in windows, I recommend to extract it and re-zip with a compressor that you know that works.

Also, some roms need different settings, like c/asm core, sound on/off, etc in order to work