i can only comment on my own. war & tank mission are both original.
Mr. turtle is not but no one was ever going to make it for coleco so i made my version. i have no rights to the mr turtle logo or original concept images.
it's basically a forgotten system & product line.
no one is going to make new games for this system at this point and expect to make money so i don't see it as hurting anyone.
there is a small profit if you sell enough but i believe(espicially in my case) it just got reinvested in other homebrews or sgm tech etc. i've spent more than i ever recieved.
I am not chastising you but those 2 facts do not matter the least in a copyright infringement case.
The only thing is that to even get sued someone needs to care enough and at this point I doubt anyone cares enough to start a lawsuit (aside Nintendo in some instances) so we let it slide but if the copyright is still in effect then technically you maybe breaking the law (conditional as I do not know if the copyrights to Mr Turtle are still in effect, maybe it's been donated to the public, or if there are invalidating conditions at play [a copyright may be invalidated if it turns out the work was based on prior art anyway, then there's "adverse possession" but I don't know how it applies to IP if at all, etc...etc...]).
On a sidenote it's funny that when we copy someone else's material "it's not hurting anyone" but if someone copies ours without our blessing/permission then it's bad.
Again I am not lecturing you, just this is from MAME (and to be clear now MESS merged with MAME so all consoles/old-computers are covered):
BIOS Dumps and Software
Most of the systems emulated by MAME requires a dump of the internal chips of the original system. These can be obtained by extracting the data from an original unit, or finding them (at your own risk) in the WorldWideWeb. Being copyrighted material, MAME does not come with any of these.
Also, you may want to find some software to be run on the emulated machine. Again, Google and other search engines are your best friends. MAME does not provide any software to be run on the emulated machines because it is very often (almost always, in the case of console software) copyrighted material."
How do I legally obtain ROMs or disk images to run on MAME?
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 download one of the ROM sets that have been released for free to the public for non-commerical use.
- 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.
Can’t game ROMs be considered abandonware?
No. Even the companies that went under had their assets purchased by somebody, and that person is the copyright owner.
What about those guys who burn DVDs of ROMs for the price of the media?
What they are doing is just as illegal as selling the ROMs outright. As long as somebody owns the copyright, making illegal copies is illegal, period. If someone went on the internet and started a business of selling cheap copies of the latest U2 album for the price of media, do you think they would get away with it?
Even worse, a lot of these folks like to claim that they are helping the project. In fact, they only create more problems for the MAME team. We are not associated with these people in any way regardless of how “official” they may attempt to appear. You are only helping criminals make a profit through selling software they have no right to sell. Anybody using the MAME name and/or logo to sell such products is also in violation of the MAME trademark.
Here is the link
To add a positive example, I believe the original Vectrex roms have been released to the public but I am not sure if all rights have been released (including the right of porting them to other systems, the right of usage of the characters in other productions etc...) or just the rights to play them.