Not a lawyer here. However, a work may be released under many licenses. The owner may release it under any license she wishes, or multiple licenses. Users may do anything they wish with the work, under ANY ONE of the licenses it has been released under, as long as they don't violate the terms of the one license they choose. This means that users may choose to relicense the work under different terms, as long as those terms maintain at least all original terms.
However, the new license does not overwrite the original terms. There is just one new additional license the work may be used under.
For instance, I may take any CC-BY-3.0 licensed work on OGA, and relicense it as is under CC-BY-SA-3.0, because CC-BY-SA still maintains all of the original CC-BY terms, and just adds a few new ones. Anybody may still use it under CC-BY-3.0 if they want, because my new license doesn't replace the old one.
I could not, however, take a -BY-SA work and relicense it as just -BY, because the -BY license gets rid of the restrictions of the -SA clause.
This is useful, because for instance, Apple's app store requires all content to be released under there own license. If users could not relicense free art under Apple's terms, then they could not use that art on apps released on Apple Store. This actually happens, as CC-BY(-SA) licenses prohibit relicensing under Apple's terms.
However, anyone can take CC0 work and slap Apple's license on it. This does not get rid of the CC0 license for other users though. A consequence of this is that anybody can take CC0 work and release it under whatever proprietary license they want and try to sell it, as is, for profit. But they can't prevent people from getting it for free, and using it legally under the terms of CC0.
Wow, that sounds like an infuriating message to get. What a jerk! Duion is right, they absolutely cannot copyright your work, nor limit anybody else's acess to it. They can't even really ask you to remove the CC0 license, as free/open licenses are irrevocable. Imagine if somebody was really invested in using your work in their game, then without their knowledge you revoked the license! Anybody always and forever will be allowed to use your CC0 work under CC0.
Whoops - I mistakenly thought you were the same person who uploaded the 512 Sound Effects just now, and my comment was an extension of a comment on that page.
So scratch the original comment, but still it's a really great tune!
Cool, really fun game! I was able to get from Ninja Gramps, to Ninja Sloth, all the way up to Ninja Child. Go me!
You may like the second sound effect here: http://opengameart.org/content/level-up-sound-effects
I got an email notification from Capbros' comment, so it seems like they didn't just clear the queue.
Not a lawyer here. However, a work may be released under many licenses. The owner may release it under any license she wishes, or multiple licenses. Users may do anything they wish with the work, under ANY ONE of the licenses it has been released under, as long as they don't violate the terms of the one license they choose. This means that users may choose to relicense the work under different terms, as long as those terms maintain at least all original terms.
However, the new license does not overwrite the original terms. There is just one new additional license the work may be used under.
For instance, I may take any CC-BY-3.0 licensed work on OGA, and relicense it as is under CC-BY-SA-3.0, because CC-BY-SA still maintains all of the original CC-BY terms, and just adds a few new ones. Anybody may still use it under CC-BY-3.0 if they want, because my new license doesn't replace the old one.
I could not, however, take a -BY-SA work and relicense it as just -BY, because the -BY license gets rid of the restrictions of the -SA clause.
This is useful, because for instance, Apple's app store requires all content to be released under there own license. If users could not relicense free art under Apple's terms, then they could not use that art on apps released on Apple Store. This actually happens, as CC-BY(-SA) licenses prohibit relicensing under Apple's terms.
However, anyone can take CC0 work and slap Apple's license on it. This does not get rid of the CC0 license for other users though. A consequence of this is that anybody can take CC0 work and release it under whatever proprietary license they want and try to sell it, as is, for profit. But they can't prevent people from getting it for free, and using it legally under the terms of CC0.
I can also confirm that I'm not getting notification emails.
I really love this style. Incredible use of just a few pixels and colors! Eager to see your other animations!
Wow, that sounds like an infuriating message to get. What a jerk! Duion is right, they absolutely cannot copyright your work, nor limit anybody else's acess to it. They can't even really ask you to remove the CC0 license, as free/open licenses are irrevocable. Imagine if somebody was really invested in using your work in their game, then without their knowledge you revoked the license! Anybody always and forever will be allowed to use your CC0 work under CC0.
Whoops - I mistakenly thought you were the same person who uploaded the 512 Sound Effects just now, and my comment was an extension of a comment on that page.
So scratch the original comment, but still it's a really great tune!
Oh - it looks like you already have! Great work!
These are awesome. Somebody needs to mix them into a full on 8-bit song! Your preview just had a groovy, driving retro beat all through it!
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