No longer in GT.M since: V5.3-003
MTRDBADBLK, Block read too small, contained only xxxx bytes, block size = yyyy
Run Time Error: This indicates that a READ command encountered a block on the tape that contained xxxx bytes, which is less than the BLOCKSIZE=yyyy deviceparameter specified.
Action: Verify that the proper tape is mounted and that the appropriate BLOCKSIZE is used when OPENing the magtape.
