I've gotten a number of complaints about my Welsh course that the sound formats work on some peoples' machines but not other peoples'. Sean Kelley has suggested a possible way of converting the sound files to ones that will be more widely usable. Accordingly, I have set up an experiment in http://www.cs.brown.edu/fun/welsh to compare the two sound formats. I'll need help from those of you with Web access and audio servers: 1. If you had trouble with the sounds before, please try out the new sound and let me know if it works. 2. If you did not have trouble with the sounds before, please try out the new sound and let me know if it has broken anything. If all goes well, I'll convert all the rest of the sounds in about a week. --Mark