ZFLASH - 47378 bytes

Zmodem Transfer Shell v1.20 for Flash v.1.50 upwards.

Zmodem is a fairly new Atari transfer protocol. It has a lot of
features which other protocols don't have.
  1) It's MUCH faster than Xmodem or Ymodem. Tests show an average
     throughput of more than 90%. Transfer of large files might even
     reach 98 or 99%. Compare that to standard Xmodem (approx. 60%),
     Ymodem (70%), and that's if you have a GOOD connection.
  2) Zmodem has a variable block size (they're called 'packets' in
     Zmodem). This means it will reduce the size of each packet if a lot
     of errors occur. If, say, with Xmodem-1K an error occurs, the whole
     Kb must be resent. If this happens with Zmodem, it will reduce the
     size of the packets, so that if another error occurs it won't have
     to send TOO much again.
  3) Xmodem and Ymodem use either Checksum (8-bit) or CRC (16-bit) error
     checking. Zmodem however uses 32-bit CRC, which improves the
     reliability of the protocol.
  4) If, say, during a transfer the carrier is lost, Zmodem can resume
     the transfer from the point where it went wrong. Very nice if
     you're transfering large files.
  5) Zmodem is a batch protocol, which means you can transfer more than
     one file at once.
These are just a few of the Zmodem features. There are a lot more,
but these are the most important and handy. If the BBS system supports
Zmodem, use it!