Service [Q] correptrd data on my s4 19500

ok the problem that i buy 32gb sd card san disk i dont know what the class but it transport filrs to speed reach to 13mb per second the major problem when i put videos music etc it becom corrupted i try it in s2 and transport files to it it worked fine even with s dous but once i put it in s4 it become corruted i try use 8gb sd it work fine now i know u goin to tell me to use ultra san disk put it very expesive in my country sudan nearly 85 dollar or Samsung it doesn't available here too and ebay or amazon ain't think they will ship it to sudan so what the solution