FAQ:ROMs - Revision history

Zino: Fixed link formatting

2019-08-17T20:43:19Z

Fixed link formatting

← Older revision		Revision as of 22:43, 17 August 2019
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	==What are "merged" ROMs?==		==What are "merged" ROMs?==

	Read the relevant section in [https://docs.mamedev.org/usingmame/aboutromsets.html#parents-clones-splitting-and-merging:the romset documentation]		Read the relevant section in [https://docs.mamedev.org/usingmame/aboutromsets.html#parents-clones-splitting-and-merging the romset documentation]

	==After merging, can I delete the unneeded ROMs?==		==After merging, can I delete the unneeded ROMs?==

Zino: Answer listed FAQ by lazily pointing to the documentation

2019-08-17T20:38:02Z

Answer listed FAQ by lazily pointing to the documentation

← Older revision		Revision as of 22:38, 17 August 2019
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	==What are "merged" ROMs?==		==What are "merged" ROMs?==

			Read the relevant section in [https://docs.mamedev.org/usingmame/aboutromsets.html#parents-clones-splitting-and-merging:the romset documentation]

	==After merging, can I delete the unneeded ROMs?==		==After merging, can I delete the unneeded ROMs?==
	==I upgraded to the latest MAME version, and now some of my ROMs don't work.==		==I upgraded to the latest MAME version, and now some of my ROMs don't work.==

Stiletto: /* How do I legally obtain ROMs or disk images to run on MAME? */

2016-07-28T18:55:24Z

How do I legally obtain ROMs or disk images to run on MAME?

← Older revision		Revision as of 20:55, 28 July 2016
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	You have several options:		You have several options:

	* You can obtain a license to them by purchasing one via a distributor or vendor who has proper authority to do so.		* You can obtain a license to them by purchasing one via a distributor or vendor who has proper authority to do so'''*'''.
	* You can [http://mamedev.org/roms/ download one of the ROM sets that have been released for free to the public for non-commerical use]. [http://web.archive.org/web/20160402171815/http://www.gaelco.com/english/pages/hablando/frhablan.htm One manufacturer has even done this as well.]		* You can [http://mamedev.org/roms/ download one of the ROM sets that have been released for free to the public for non-commerical use]. [http://web.archive.org/web/20160402171815/http://www.gaelco.com/english/pages/hablando/frhablan.htm One manufacturer has even done this as well.]
	* You can purchase an actual arcade PCB, read the ROMs or disks yourself, and let MAME use that data.		* You can purchase an actual arcade PCB, read the ROMs or disks yourself, and let MAME use that data.

	Beyond these options, you are on your own.		Beyond these options, you are on your own.

			'''*''' There are a few game packs out there from various software publishers, such as Hanaho's "Capcom Coin-Op Classics", which include ROMs as part of their distribution. If you purchase one of these, while being a legal sale, repurposing the ROMs packaged with these for use with MAME may be a violation of these packages' end-user license agreements, but might not be illegal depending on your country and jurisdiction.

	==Isn't copying ROMs a legal gray area?==		==Isn't copying ROMs a legal gray area?==

Stiletto: /* How do I legally obtain ROMs or disk images to run on MAME? */

2016-07-28T18:47:46Z

How do I legally obtain ROMs or disk images to run on MAME?

← Older revision		Revision as of 20:47, 28 July 2016
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	* You can obtain a license to them by purchasing one via a distributor or vendor who has proper authority to do so.		* You can obtain a license to them by purchasing one via a distributor or vendor who has proper authority to do so.
	* You can [http://mamedev.org/roms/ download one of the ROM sets that have been released for free to the public for non-commerical use].		* You can [http://mamedev.org/roms/ download one of the ROM sets that have been released for free to the public for non-commerical use]. [http://web.archive.org/web/20160402171815/http://www.gaelco.com/english/pages/hablando/frhablan.htm One manufacturer has even done this as well.]
	* You can purchase an actual arcade PCB, read the ROMs or disks yourself, and let MAME use that data.		* You can purchase an actual arcade PCB, read the ROMs or disks yourself, and let MAME use that data.

Stiletto at 13:40, 11 July 2016

2016-07-11T13:40:47Z

← Older revision		Revision as of 15:40, 11 July 2016
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	Ultracade had two separate products. The Ultracade product is a commercial machine with commercial licenses to the games. These machines were designed to be put on location and make money, like traditional arcade machines. Their other product is the Arcade Legends series. These are home machines with non- commercial licenses for the games, and can only be legally operated in a private environment. Since their buyout by Global VR they only offer the Global VR Classics cabinet, which is equivalent to the earlier Ultracade product.		Ultracade had two separate products. The Ultracade product is a commercial machine with commercial licenses to the games. These machines were designed to be put on location and make money, like traditional arcade machines. Their other product is the Arcade Legends series. These are home machines with non- commercial licenses for the games, and can only be legally operated in a private environment. Since their buyout by Global VR they only offer the Global VR Classics cabinet, which is equivalent to the earlier Ultracade product.

			==What are "merged" ROMs?==
			==After merging, can I delete the unneeded ROMs?==
			==I upgraded to the latest MAME version, and now some of my ROMs don't work.==
			==What do "ROM NEEDS REDUMP" and "NO GOOD DUMP KNOWN" exactly mean in a ROM audit?==
			==What are PROMs?==
			==Why can't I just download all the ROMs and samples in one file? Why are people so hostile when I ask?==
			==What is "romcmp" used for?==
			==Why can't I find samples for some games?==

Tafoid: /* Why does MAME report "missing files" even if I have the ROMs? */

2012-04-24T18:58:23Z

Why does MAME report "missing files" even if I have the ROMs?

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	* It is not unusual for the ROMs to change for a game between releases of MAME. Why would this happen? Oftentimes, better or more complete ROM dumps are made, or errors are found in the way the ROMs were previously defined. Early versions of MAME were not as meticulous about this issue, but more recent MAME builds are. Additionally, there can be more features of a game emulated in a later release of MAME than an earlier release, requiring more ROM code to run.		* It is not unusual for the ROMs to change for a game between releases of MAME. Why would this happen? Oftentimes, better or more complete ROM dumps are made, or errors are found in the way the ROMs were previously defined. Early versions of MAME were not as meticulous about this issue, but more recent MAME builds are. Additionally, there can be more features of a game emulated in a later release of MAME than an earlier release, requiring more ROM code to run.

	*You may find that some games require CHD files. A CHD file is a compressed representation of a game's hard disk, CD-ROM, or laserdisc, and is generally not included as part of a game's ROMs. However, in most cases, these files are required to run the game, and MAME will complain if they cannot be found.		* You may find that some games require CHD files. A CHD file is a compressed representation of a game's hard disk, CD-ROM, or laserdisc, and is generally not included as part of a game's ROMs. However, in most cases, these files are required to run the game, and MAME will complain if they cannot be found.

	* Some games such as Neo-Geo, Playchoice-10, Convertible Video System, Deco Cassette, MegaTech, MegaPlay, ST-V Titan, and others need their BIOS ROMs in addition to the game ROMs. The BIOS Roms often contain ROM code that is used for booting the machine, menu processor code on multi-game systems, and code common to all games on a system. BIOS ROMS must be named correctly and left zipped inside your ROMs folder.		* Some games such as Neo-Geo, Playchoice-10, Convertible Video System, Deco Cassette, MegaTech, MegaPlay, ST-V Titan, and others need their BIOS ROMs in addition to the game ROMs. The BIOS Roms often contain ROM code that is used for booting the machine, menu processor code on multi-game systems, and code common to all games on a system. BIOS ROMS must be named correctly and left zipped inside your ROMs folder.
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	* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.		* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.

	* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the same game. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). ~~Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .~~		* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the same game. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped).



	==How can I be sure I have the right ROMs?==		==How can I be sure I have the right ROMs?==

Stphinkle at 03:53, 10 September 2008

2008-09-10T03:53:18Z

← Older revision		Revision as of 05:53, 10 September 2008
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	* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.		* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.

	* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the game ~~in question~~. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .		* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the same game. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .

Stphinkle at 03:53, 10 September 2008

2008-09-10T03:53:00Z

← Older revision		Revision as of 05:53, 10 September 2008
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	* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.		* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.

	* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the game. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .		* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the game in question. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .

Stphinkle at 03:52, 10 September 2008

2008-09-10T03:52:29Z

← Older revision		Revision as of 05:52, 10 September 2008
Line 15:		Line 15:
	* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.		* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.

	* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the ~~same~~ game. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .		* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the game. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .

Stphinkle at 03:52, 10 September 2008

2008-09-10T03:52:04Z

← Older revision		Revision as of 05:52, 10 September 2008
Line 15:		Line 15:
	* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.		* Older versions of MAME needed decryption tables in order for MAME to emulate Capcom Play System 2 (a.k.a. CPS2) games. These are created by team CPS2Shock.

	* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the same game. ~~Such~~ alternate versions include versions in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .		* Some games in MAME are considered "Clones" of another game. This is often the case when the game in question is simply an alternate version of the same game. Common alternate versions of games include versions with text in other languages, versions with different copyright dates, later versions or updates, bootlegs, etc. "Cloned" games often overlap some of the ROM code as the original or "parent" version of the game. To see if you have any "clones" type "MAME -listclones". To run a "cloned game" you simply need to place its parent ROM file in your ROMs folder (leave it zipped). Another way to find out if a game needs a parent ROM, is to visit the MAWS database at http://www.mameworld.net/maws/ .