In article <OTTO.91Jan3125711 at tukki.jyu.fi> otto at tukki.jyu.fi (Otto J. Makela) writes: > if(f=fopen(filename,"a+b")) { "a" means that all writes happen at the end of the file, use "r+b" instead. -- Lars Wirzenius wirzeniu at cs.helsinki.fi wirzenius at cc.helsinki.fi