QUOTE(hong_mei_ling @ Dec 27 2017, 08:53)

can't i just upload the dmme files somewhere?
You can, and I suggest to do exactly that. However, I need to fetch decryption keys to decrypt the file. Decryption keys are only available on portal-specific DRM servers, after you log in with your portal account. Thus, I need to have that data to fetch the decryption keys.
There are cases when user can't upload the original file due to various reasons. In this case, I'll also need to log in to his portal account to download the file myself. It takes extra time and effort, so I prefer that user uploads the file himself. This would also mean that the user's login history, if it exists, will be clean because portals don't usually track login attempts on their DRM servers.
It might be possible for me to change the process by preparing a tool that would fetch the decryption keys from your machine after you authorize the file yourself. This way I wouldn't need to have the account data. However, this implies certain effects which I didn't find convenient and practical to any party, namely:
- You'll need to install the DRM software yourself, run it and authorize your file on your PC. Some people are unable to use it because it crashes/hangs or simply doesn't work on their device.
- You'd need to download my tool and run it on your device. Most people are not advanced enough to verify that it's safe. In case I post the source code, Japanese portals may not like that.
- Many DRM schemes work on several OS and on mobile ones too. Theoretically, I can start developing my tools for non-Windows and non-PC environments. On practice, I can't because I'm sure the results will be limited (in both effectiveness and longevity) and not worth the effort.