I currently have a ms25 drive that plays only dvd's and for some reason doesn't play games. I was going to order a new samsung dvd drive but I came across a possible problem. If I buy a new sammy dvd drive and its ms28 can I still put the ms25 board into it and will it work? I was thinking "yes" because its just a f/w version right?
Before you buy a new drive, you need to attempt a POT calibration for your laser. Basically it just adjusts your laser to be more powerful so that it can read games better. You can find a tutorial here: http://dwl.xbox-scene.com/tutorial/XBOX_360_POT_CALIBRATION_V1.0_by_Moda.pdf If that fails, then you can worry about replacing your drive. You don't need to get a whole new drive, though. You can just replace the laser component. If it does come down to you needing to replace the ms25 with an ms28, I would imagine that yes, you could just replace the board. I am not 100% certain on that, though.
I believe the 360 will throw an "E" error (E64 or E66, something like that) because it will detect the MS28 when it is expecting a MS25. That is if you just put in the MS28. But like qwert99 said, I think you should be able to put the MS25 board in a MS28.
