@gtsofilms
I'll have to do until an expert comes around

RAWanizer is only a GUI (graphical user interface) to command line programs; that is, programs that run in a command line by sending them parameters. For example, if you load a command prompt and put a myshoot.RAW file and raw2dng.exe into the same folder and type "raw2dng.exe myshootRAW" raw2dng.exe will extract/create a series of DNG files that are frames in your video. Then, if you put dcraw.exe in that folder with the dngs and type dcraw.exe -w -6 -T myshoot0001.dng it will create myshoot0001.tiff The "-w -6 -T" tells dcraw to create a TIFF at 16bits using the camera white balance recorded in the DNG file. There are MANY other ways (parameters/arguments) of telling dcraw how to create your TIFFs. ffmpeg.exe is another command line program that creates movie files. It is usually used to convert one format to another. It is a very complex piece of software.
Knowing this, you can see that the problem would either be 1.) RAWanizer is not/cannot call one of the programs. or 2.) it is calling them with the wrong parameters. I believe it is one. Because dcraw does not have a parameter to set where the output file goes, it is has be copied into the source file folder. I believe this is creating problems. I don't believe this problem can be solved until the maker of RAWanizer looks into it. For now, you can mimic what RAWanizer does by:
1. Copy RAW file into folder
2. Copy RAW2dng into folder
3. Drag RAW file onto raw2dng (same as raw2dng myShoot.RAW in command line)
4. Copy extracted DNG files to their own folder, say /dng
5. Copy dcraw.exe to dng
6. Type someting like dcraw -w -T DSC00001.DNG DSC00002.DNG DSC00003.DNG (all the other file names separated by spaces)
7. Copy ffmpeg into folder
9. run ffmpeg on TIFFs (parameters to long to go into now).
The above process is what RAWanizer automates for you. It also has come canned settings to start you out, and you can create/modify your own. It's very good software. Unfortunately, unless this bug happens to the developer it's difficult for him/her to troubleshoot.