  Magtape media estimations, disk block size? 
 The Question is:
 
I am trying to estimate how many tapes I will need when running a backup -
Is there a quick formula to convert VMS blocks to megabytes?  Thanks.
 
 The Answer is:
 
  Please start with the following two OpenVMS FAQ sections:
 
    MISC13. How do I check for free space on a (BACKUP) tape?
    PROG14.  How many bytes are in a disk block?
 
