Hunter plays NSFs on the TurboGrafx / PC-Engine. NSF is the format used for ripping soundtracks from NES / Famicom games.

Release notes:

I’ve fixed a bug in the handling of the noise channel’s length counter. The drums in Super Mario Bros and Super Mario Bros 3 should now sound a lot better.

I’ve also modified the rombuilder to pad the output .PCE file to a multiple of 256 kB. That should solve any random freezes that could result from an odd ROM size causing the wrong bank to be switched in.

http://www.neoflash.com/forum/index.php/topic,6268.0.html