Note: Windows only though it might work through wineskin Features: Quick unpacking of .nus3bank files Lists the .idsps (tracks) from the .nus3bank Allows you to select any number of them and replace with any WAV, OGG, BRSTM, BCSTM, or BFSTRM file that is automatically converted to idsp and replaced in the opened nus3bank Easy to use GUI, no need for repetitive command line tasks NOTE: This does not allow you to add music slots. Future features I am looking into: Looping support (Can be done with a looping BRSTM at the moment) Sound previewing (Can be done with foobar and vgmstream) Other minor features If you are familiar with the idsp file format or can point me to some documentation that would greatly help. Right now due to the lack of looping this is not very amazing for music but it is very good for SFX. If you want to use a custom idsp with this tool hit replace then select the file type idsp instead of wav. Usage: Install Python 2.7 if you don't already have it. Unzip into any directory. Run _NUS3BANK Editor.pyw Hit file > open and select the nus3bank you want to edit. A list of idsp's should pop up. Select as many as you want then hit replace and select the WAV, OGG, BRSTM, BCSTM, BFSTRM or IDSP you want to replace that sound with. Screenshots Functions of things: File > Open NUS3BANK - opens the nus3bank for editing Replace button - replace all selected idsps with a WAV, idsp, ogg, brstm, etc. Open IDSP button - open first selected idsp in default program (suggestion: foobar2000 with vgmstream plugin) if you have not assigned a program it will prompt you to pick one. Export to WAV button - export all selected IDSPs to /nus3bankeditor/<Name of *.nus3bank>/<name of *.idsp>.wav Open as playlist button - opens a playlist of idsps in the .m3u format Download it here Feel free to report any bugs, issues, or suggestions you have here. I just want to make this as useful for you guys as possible. Thanks to Y.2.K. for helping me out with testing. Huge thanks to Soneek for the backbone of this tool. Thanks to BlueDan for adding a lot playlist support and better error handling. Edit 5/14/2016: Version 1.1 has been uploaded, download link has been updated. Fixed some issues with renamed nus3bank's not properly opening, added the ability to import idsp's and a few smaller bug fixes. Edit 5/15/2016: Version 1.3 has been uploaded, download link has been updated. Added support for BRSTMs, BCSTMs, BFSTMs and OGGs. Added more debugging related features. Fixed bugs nobody cares about. Edit 5/18/2016: Version 1.5 has been uploaded, download link has been updated. Added the ability to open idsps from within the tool through the default IDSP opener. To set this up install a something that can listen to idsps (example: foobar2000+vgmstream) and open an idsp in any way, when prompted select open with foobar (or whatever program you want) Edit 5/21/2016: Version 1.6 has been uploaded, download link has been updated. Added an "Export to WAV" option. Just select the IDSPs to export and hit the button and it will export to /nus3bankeditor/<Name of *.nus3bank>/<name of *.idsp>.wav this does support doing multiple at once. Edit 5/22/2016: Version 1.7 has been uploaded, download link has been updated. Added playlist support (and open in playlist option) by BlueDan. Also fixed a bug with certain nus3banks not properly opening. Edit 5/25/2016: Version 1.8 has been uploaded, download link has been updated. Added better error handling by BlueDan. Edit 5/30/2016: Version 1.96 is the current download. Edit 10/26/2016: Link updated to @BDS' github (BlueDan's) as he is, and has, been the lead of the project since Early June.