The Iwasaki has special capacitor build-in on the bulb, enable it to be used on both MH and MV ballast. If other brand has the similar design, then of cause it will work as well. But AFAIK, Iwasaki is the only that have this feature.
At any rate, check the specification of the ballast. Very likely, the ballast will be dual use (have both ANSI H series and M series notation). If it is the case, you can use the ballast to drive both types (MH and MV) of bulbs with the right wattage.
Most ballast manufacture just don't make MV-only ballast, I heard.