I have been contacted by a rock band and asked to take pictures for magazines and promos and possibly an album cover...

Everything would be allright if it wasn't for the fact that they want to be the sole proprietors of the negatives.

I do mostly fine art (how they call it) i have dealt with clients before but this is the first time i have been asked such a request, which i do not like . I need a feedback from somebody.......Thank you.