hmmm....

This is why I was always use the "custom" or "advanced" set-up option when installing SW. You can pick and choose what features and how the SW will function. I've installed Nero (for example) several times and have never had any issue with it forcing itself into the default file association.

I don't assume to say that this is the case with everything available, but it is my experience with Nero, VLC, blah blah blah.....

...as far as your cover art problem. I have no clue what SW it is, but I have some lingering memory of some editing program that will do resizing on multiple files at the same time. Maybe it was mentioned in a old thread about altering graphics for channel icons, or something or other.... Sorry I'm being so vague, but it may be worth a google search.

If you get lucky and find something, just remember to unclick the file association box while doing the install. ;)