http://absolix.newgrounds.com/

Not sure how long this is gonna last but according to Iambian this one was even in the top 50

Well he was reported. In case this link goes down soon, this guy uploaded many of my songs as well as some by Nitacku from Omnimaga website without my permission.

Thanks to Iambian for reporting this.

I suspect DJ Trancite, who tried doing the same thing a few months ago (if anyone remember some discussion in #omnimaga), and I wouldn't be surprised if he had more accounts. He most likely wanted to have revenues from clicks, something I failed to achieve so far (but again I only have 5 songs on NG )

I was going to say - it looks like he's just trying to mirror your music downloads for other people to find; but one his responses to the comments makes it seem like he's trying to claim credit for the track:

Thanks lol
I try to get as many people as i can to view my songs.. so yea
They don't normally get let down

I will never understand why anyone bothers to blatantly plagiarize others. Do these people actually feel accomplished when they assume credit for someone else's work?

I think it's possible to define read-only tags in most media files. With that, you could include details like your site URL, and add a comment like, "This file may only be hosted at {site URL}" If the files get circulated beyond Omnimaga, that would at least let your fans know to watch out for unauthorized copies; though I guess that doesn't do much good if someone uploads it to a Flash container, (i.e., YouTube or Newgrounds media players) where metadata is stripped during the transcoding process.

I would think Newgrounds would do something about the user, if you report the account for fraudulent use of your name and your works.

I would give them a little more time to investigate it. They probably want to search for connections to your name and your works so they can verify your claims before taking action. If you can get in contact with the admins directly, (maybe the site has a "Contact Us" link somewhere) you can give them more detailed info: Your website URL, where your files are hosted, etc. Suggest they check the upload / modification dates on your copies of the files, and compare them to that of this user. Metadata is probably the most useful method of verifying the origin of a file; though even that can be manipulated...

Personally, plagiarism doesn't bother me so much. I make it a habit to release any of my works under a license allowing others to redistribute or modify the work. As long as people are able to enjoy my work in some shape, form or fashion, then I'm satisfied to have contributed something that will have influenced, entertained and / or inspired them - my reputation notwithstanding; though, I can understand how a reputation might be important to someone who wants to create an active fanbase, and reach out to many people at once. It guess it would be difficult to maintain a certain kind of profile when other people are usurping your aliases and passing your works off as their own.

You know, I don't think I have any kind of online reputation... I'm more of a "hit-and-run" kind of guy when it comes to my Internet activity.

Have you a licence for your music? Even with that, that thief violates the most permissive ones, such as Creative Commons...