Get it right first time has always seemed a good business maxim, but poor old IBM Corp seems to find it a hard one to follow these days – as well as making its CD-ROM channel attach feature emulate a tape drive so that a future release is needed in order to eliminate conflict with actual tape drives (CI No 1,795), the company says that IBM on-line book files will have names that begin with letters A to I, or Q and that to avoid duplicating names used for IBM on-line book files, customers should not use these letters in naming their on-line books files – but then has to add Some IBM on-line books have been shipped using file names that do not conform to this standard and that these files will be re-named when future editions appear.