@Everblue
1. Is the filename for .adf files limited in length?
No, but due to FAT format is advisable use the 8.3 format for filenames (8 chars for name and 3 char for extension)
2. Can I use subfolders (for example put multi-adf games in 1 subfolder)?
Not yet. Maybe in future releases of firmware it can be done, meanwhile all files must be in root directory.
3. I have noticed in the game compatibility list that there is version '080408'. What does this mean?
I think that it refers to firmware version, but I'm not sure. The last one (done by Yaqube) is the most compatible and feature-rich.
4. In case that my TFT doesnt do 50hz, I could run the games in NTSC mode for 60hz... How do I do this?
Just use the NTSC core instead PAl core (I didn't try it because my TFT supports PAL core).
5. Is it possible (just wondering) to use an RGB/SCART cable with minimig for a normal TV?
No, the Minimig only has a VGA video output.
Hope it helps you...
Regards