This is a sub-version of the upcoming version 1.2 of GTA-IVaud. This version allows you to open, extract, and replace non-compressed PCM audio within certain ivaud files. This version does NOT support the opening or replacing of compressed speech audio, or compressed multichannel audio such as music and radio stations, version 1.2 will do that. What this release does do is fix several issues which resulted in program instability in version 1.1, and it adds support for the showing of filenames.
I am currently working on version 1.1.6. I don't have a release date in mind just yet because the work is slow going (college is back in session).. Visit my website/forum for more information.