Nec 2500a question about firmware

hey guys,
i was wondering that does the nec 2500a include all the firmware previous to it like 1.06 and 1.07 because the dvd drive came with the 1.7 firmware , thanks

If you’re asking if the old firmwares come archived on a disc or something than no- the drive only comes with the firmware that is loaded on it.

If you’re asking if later firmwares contain cumulative improvements, then yes- drive manufacturers usually use the last firmware as a starting point when modifying it into something new and improved.