I've been making spring rolls (the deep-fried variety) for some time now, and they are really good, but I've noticed some Asian restaurants use something else for wrapping them than the generic, translucent 'rice paper' I get at the store. Theirs are often smoother, yellowish and opaque, like in this photo from Wikipedia. A new book on Thai cuisine I got just recently also has them looking like that in the pohotos and it mentions some mysterious "spring roll wads" which I've yet to come across in any store in my country. Anyways, what is it exactly, can I make some of my own and if so, how?
EDIT: Also, does the preparation of the rolls differ any when using an alternative wrapper, or can I just deep-fry them just the same?