Hi, I need a simple program that convert ascii file to binary SAC file format. Can you help me? best regards Onur Dr. Onur TAN ---------------------------------------------- 40.7866N 29.4500E --------- TÜBİTAK Marmara Araştırma Merkezi, Yer ve Deniz Bilimleri Enstitüsü TUBITAK Marmara Research Center, Earth and Marine Sciences Institute Gebze - Kocaeli - TURKEY