Notes about the IDSP file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The IDSP file type is primarily associated with 'Gamecube' by Nintendo. This is a streamed audio format used be several Nintendo Gamecube games. For playing in_cube is a Winamp plug-in intended to play streamed audio formats from the Gamecube system although that is being replaced with vgmstream. The Extended Music Script can be used to play this and many other such formats.