Yawancin masu amfani sun fuskanci, karatun katin karatu lambar katin da kuma IC katin buga lambar katin ba daidai ba yanayin, wahala neman amma ba za a iya samun mafita.

Mun tsara mafi kyau mafita ga abokan ciniki, karanta bangare al'ada katin lambar, sa katin lambar mafi ma'ana, rubuta bangare data block da wani marubuci katin al'ada katin lambar,

Kuma ɓoye bangaren, amfani da wani katin karatu, ta atomatik karanta lambar katin, mai sauki da sauƙi don amfani, dace da tsarin katin memba, tsarin sarrafa littafin da sauransu masu amfani da bukatun katin bugawa.