MAMEWorld Forums - EmuChat - Re: Can't Run Willow

> And for the record, it's might be these that you're missing:
>
> "buf1" size="279" crc="eb122de7"
> "ioa1" size="279" crc="59c7ee3b"
> "prg1" size="279" crc="f1129744"
> "rom1" size="279" crc="41dc73b9"
> "sou1" size="279" crc="84f4b2fe"
> "wl24b.1a" size="279" crc="7101cdf1"
> "lwio.11e" size="279" crc="ad52b90c"
>
> They're dumps of the programmable logic devices that were used on the arcade boards
> to determine how memory and the video chips were accessed, among other things.
>
> ROM sets can and do change between versions due to bad dumps being corrected or
> undumped chips subsequently becoming dumped. In this case it's the latter. While the
> Capcom CPS-1 driver does not currently make use of the data on these chips, it's
> important and desirable to have this data documented in MAME, because it largely
> exists as accurate hardware documentation that people can - and do - use for
> repairing their own arcade boards that have developed faulty ROMs or programmable
> devices. Previously MAME was largely limited to only preserving ROM dumps, but there
> has been a general push towards including the data from other programmable devices on
> the boards as well.
>
> As there are plenty of torrent sites out there that provide torrents of up-to-date
> complete ROM sets, having this data documented in MAME effectively incentivizes the
> duplication of said data, ensuring that it won't be lost in a historical void as
> things have in the past. Unfortunately for you, the MAMEWorld forums disallow
> explicit posting of direct ROM links due to the fact that forums have in fact been
> targeted in the past for copyright violations due solely to content linked on them.
> About the most anyone can tell you is that if you're looking to download individual
> ROM sets, you're out of luck, your best bet is a torrent site. Any decent torrent
> software will even allow you to select just the individual files in the torrent that
> you want, so you won't even have to download the whole
> multiple-tens-of-gigabytes-sized full MAME ROM set.

I nominate this post as the most friendly/accurate/precise answer to any question asked so far !!!