Having just looked at John Chambers' converter page, I realized I have used it before. I was wrong, you can't drag a file onto the converter, it's actually a form which must be manually filled in. However, the information to fill the form could certainly be cut and pasted from a text file. And the GIF converter does a nice job. It also has converters for producing PS or MIDI output. And, technically, you wouldn't have to donate your file to John's archives since that doesn't happen until you hit the 'Submit' button.