It may be possible, although the existing fout opcodes would need code changes to be aware of the possiblity of file handles being removed. Closing a file while another instrument is using it is also tricky. On Monday 29 May 2006 19:43, Andres Cabrera wrote: > I'm writing to request the addition of an ficlose opcode to complement > fiopen. > Currently, a csd like (run in realtime):