$RENAME m50BIG0.BDF BDFm50BIG0.DAT
$RENAME m50BIG1.BDF BDFm50BIG1.DAT
$RENAME m50BIG2.BDF BDFm50BIG2.DAT
$RENAME m50BIG4.BDF BDFm50BIG4.DAT
$RENAME m50BIG8.BDF BDFm50BIG8.DAT
$RENAME m50LIT0.BDF BDFm50LIT0.DAT
$RENAME m50LIT1.BDF BDFm50LIT1.DAT
$RENAME m50LIT2.BDF BDFm50LIT2.DAT
$RENAME m50LIT4.BDF BDFm50LIT4.DAT
$RENAME m50LIT8.BDF BDFm50LIT8.DAT