For the most part I haven't had problems with these but one friend reports he can't open these files after I've send them as email enclosures. I've exported them by using "bounce" and generally do them at 160 rather than the usual 128 for these purposes. He is running Snow Leopard as well and can only open them if I send the link to them on my website. I assume that these mp3s are standard but he gets a message saying that he doesn't have the software to open them. Ideas anyone?