By the way : don't use it for DSK convertion : a lot of other tools are working far better.
The main quality is on the other formats (more straightforward formats)
EDIT - To be more precise : DSK can be used as source, but shouldn't be used as output. Samdisk (for example) works far better.
The main quality of my tool is the recréation of a complete MFM track from many source (including edsk), and the possibility to write it to another format. IPF, SCP and HFE should be prefered, as it can be automated (DSK need lots of computing, which aer not of great quality here).
Another note on IPF : The IPF genereted is exactly what is on the track. Unlike the SPS tools, there is no recognition of an existing protection scheme. The drawback is the size of the dump (which is often a bit big). The advantage is that every dump should work exactly as the original tacks.