Dave: Responding to how to tel the difference between mame34 and not mame34 recordings:(posted 9194 days ago)For Non cheaters it's a simple matter of looking at the header, mame34 didn't have a gamename header and mame35 does.
For cheaters trying to remove the header from their mame35 recording and submit it as mame34, it will be very unlikely to playback under mame34 if it was recorded in mame35.