get romcenter (www.romcenter.com)
get datutil (www.logiqx.com/Tools/DatUtil/)
get gngeo (http://gngeo.berlios.de/?page=download)
extract romrc from gngeo
extract datutil
run conversion
D:\temp\gp2x>datutil.exe -f rc2 -o gngeo.dat romrc
===============================================================================
DatUtil v2.42 (16 July 2008) - using DatLib v2.32 (16 July 2008)
Written by Logiqx (http://www.logiqx.com/)
===============================================================================
Processing romrc:
Loading the file into memory (first 8.0KB)...
Identified the file as being 'GNGEO romrc' format.
Specified the save format as being 'RomCenter 2.50'.
Loading the file into memory (282.45KB)...
Calling the 'GNGEO romrc' pre-parser/tokenizer...
Storing the tokenized dat within the actual dat structure...
Processing complete!
Loaded 475 games (0 parents, 0 clones, 475 others) and 0 resources.
Note: There are some warnings for the processing (see datutil.log for details).
Note: Fixes were applied to the data file (see datutil.log for details).
-------------------------------------------------------------------------------
Saved gngeo.dat in RomCenter 2.50 format.
Note: Some game information could not be saved (see datutil.log for details).