I know this great little site that stores recordings of MAME games.(posted 10005 days ago)All the versions of MAME which support recording are available there (as of this morning).
On the (all new!) script options screen, where you can click 'submit', 'leaderboard', 'log in', etc, you'll see (in the smaller print at the bottom of the table) the word 'versions' - click it!
I'll not tell you the URL of this great little site though, it's pretty exclusive. Last time somebody discovered it they uploaded hundreds of high scores and dominated the leaderboard...