Just saw this on the new applications feed on romhacking.net, I will try to get a version up on filetrip at some point but in the meantime it is available on RHDN
http://www.romhacking.net/utilities/915/
SVN for it
https://www.assembla.com/code/nitro2dls/subversion/nodes
It is coded in adobe air so you will need some form of runtime to get it going on ( http://www.adobe.com/products/air.html - available for windows and OSX, linux support was dropped some time back so you might be out of luck there).
DLS is kind of the rough equivalent of SBNK files as it contains mappings and the relevant samples to make tracker/sequence music play. DLS is then one of the more notable formats for doing this and the normal tool that made them was vgmtrans ( http://filetrip.net/nds-downloads/utilities/download-vgmtrans-92909-f27960.html ) which did not make DLS files that played well with openmpt (worked great with Awave Studio though). I have yet to see whether this changes that (and it would be nice as openmpt is far nicer to edit things in).
One readme
http://www.romhacking.net/utilities/915/
SVN for it
https://www.assembla.com/code/nitro2dls/subversion/nodes
It is coded in adobe air so you will need some form of runtime to get it going on ( http://www.adobe.com/products/air.html - available for windows and OSX, linux support was dropped some time back so you might be out of luck there).
DLS is kind of the rough equivalent of SBNK files as it contains mappings and the relevant samples to make tracker/sequence music play. DLS is then one of the more notable formats for doing this and the normal tool that made them was vgmtrans ( http://filetrip.net/nds-downloads/utilities/download-vgmtrans-92909-f27960.html ) which did not make DLS files that played well with openmpt (worked great with Awave Studio though). I have yet to see whether this changes that (and it would be nice as openmpt is far nicer to edit things in).
One readme
Nitro SDAT to DLS converter
This little application converts the instruments from a Nitro Composer archive (known as a "SDAT") into the standardized DLS file format that professional synth software understands.
Known limitations:
* Pulsewave and noise instruments are not converted
* ADSR curves are not converted
* nds files with more than one sdat file will need to be manually unpacked if the first found sdat file is to be converted.
* Sequence specific settings are not converted
Made in 2012 by Henrik "henke37" Andersson.
Remember that instruments and their samples are copyrighted material.