8) problem fixed. i'll post here what i did to others with similar problems: i used dosbox (http://dosbox.zophar.net). There was problems seting up the sound, so i decided to edit dune.bat until reaching success. i leave the content of the file to run with doxbox: @echo off C: DNCDPRG AMR ADL SDB2225 EMS 386 SAF WRIC:DUNECD As you can see, soundblaster for sound and adlib for music. They're configured to dobxbox settings. No problems with speed, sound, music. Btw, remember to delete the command REM from the dune.bat because doxbox doens't recognize this command. cya ;D