DefleMask DMF and X-Tracker DMF

[Metro28]

Question: Why is DefleMask's DMF different than X-Tracker's DMF?
Answer: The owner of DefleMask when he created the DMF format did not know that a DMF file already existed.

Whenever they create a new file format, always check if that format they are creating already exists... and more if it is a module.

[Saga Musix]

Please stop making up answers for which you cannot cite sources.

[Metro28]

Please stop making up answers for which you cannot cite sources.

The message is still there, it is in spanish, if you want I will give you what the creator wrote.

[Metro28]

Please stop making up answers for which you cannot cite sources.

It simply says that it had no idea that it already existed.

[mabersold]

Did you contact them personally or something? If so that would be an important detail to mention.

Anyway nobody really "owns" file extensions - given how long PCs have been around and how many pieces of software have been written, it's inevitable that some file extensions are going to be used differently by more than one program. It's also trivial for a PC user to change the extension of a file without changing the actual content of the file. I guarantee that .mod is used by some applications as something other than music, and probably .xm and .it as well (maybe not .s3m though).