So when M2 decided to make 3D versions of Sega's old super scaler games over the last few years, they liked to "enhance" these emulated ports with extra music that they found in the Sega archives that for whatever reason was cut out of the original, starting with Galaxy Force.
Sadly with Galaxy Force, this music was streamed rather that emulated to save resources, but from After Burner on, they had enough of a grip on the 3DS hardware to emulate the sound hardware instead, which helped cut down the download size.
This means that the 3DS versions of After Burner and Thunder Blade contain z80 ROMs of the unabridged music.
(OutRun has extra music, too, made specifically for that release, but because it adds additional tracks to the game, rather than the track-for-track replacements of the other two, uses extensive patching to make it available in the music select.)
Anyway, I bring this up as these z80 ROMs have been extracted and patched, thanks to ctr from VGMRips.
The After Burner ROM has been floating about for a good year, whilst the Thunder Blade one was left unextracted until I contacted ctr last week, and provided him with the files needed to sort that one too for my own "selfish needs".
The question is: Are these any good for inclusion in MAME or not in this day and age?
I know certain guidelines for inclusion have changed over the years, but considering the addition of the "lost" English version of Monster Land from Virtual Console (which I believe was also down to M2 rummaging through the Sega archives), and unofficial patches like OutRun Enhanced, I thought it might be worth telling you guys these ROMs exist, knowing that a handful of MAMEdevs haunt this forum...