Use *.dsc files from opensuse to package?

[Grammostola Rosea <rosea.grammostola@gmail.com>]

Hi,

Is it more easy to use *.dsc files from packages which are already in 
other distro's like Ubuntu or OpenSuse?

For example
http://packman.links2linux.de/package/jack_mixer

And how?

Or is it better to use just upstream source?

\r