Every time I've tried to convert graphic formats I got the following error:
Access violation at address xxxxxxxx in module "MXPLORER.EXE". Read of address FFFFFFFF.
Where xxxxxxx is not always the same value and may vary. This error happens only in the Spanish program version when the destination format Color depth is greater than 256 colours (8 bit). I tried with the English version with greater depths and works OK.