My friend has a macbook pro, i have a pc. I've downloaded some programs that are split into multipart .dmg files, like program.dmg.01 through program.dmg.12. I have windows xp, and would like to know if there is a utility i can use on xp that will take those multipart dmg files and put them as a single dmg file. also, some classical mp3s i need to put in one zip files, like mozart.mp3.zip01 ~ mozart.mp3.zip02. I would really like some advice from you mac users, i know you guys know your stuff, and obviously i do not, and my friend is not a power user, so he's clueless too, and he's in another state, or i'd just use his apple to run some mac apps that could do it. Thanks People!