Here's my .ini file for Nestopia (
http://nestopia.sourceforge.net/ ) an NES emulator.
emulator_title NES - Nestopia
### List Generation Settings ###
rom_path ~/Games/NES/ROMS
rom_extension nes
dat_file
nms_file
catver_ini_file
list_generation_method rom_folder
### Execution Settings ###
emulator_executable ~/Emulators/NES/Nestopia/nst
commandline_format "[rompath]/[name].[romext]"
alt_commandline_format_1
alt_commandline_format_2
game_specific_config_path
### Artwork Locations ###
artwork_1_image_path
artwork_2_image_path
artwork_3_image_path
artwork_4_image_path
artwork_5_image_path
artwork_6_image_path
artwork_7_image_path
artwork_8_image_path
artwork_9_image_path
artwork_10_image_path
movie_preview_path
movie_artwork_no 1
### Screen-Saver Settings ###
enable_music_in_screensaver 0
saver_type movie
movie_path ~/Games/NES/Screens
movie_fullscreen 1
quit_delay 30
wrapper_executable
wrapper_commandline_format [name]
scr_file
### External Application Settings ###
ipc_file_or_path
app_1_executable
app_1_commandline_format
app_2_executable
app_2_commandline_format
app_3_executable
app_3_commandline_format
auto_launch_apps
### Additional Settings ###
music_path
lcd_display_file_path
lcd_fe_text
### Settings used by MAMEWAH ###
current_list 0