When the CRC and TCP Checksum Disagree (2000) [pdf]

So ... much ... data ... losses ... then.

First noticed that when we tried to put Internet thru a satellite in 1994.

FTP would successfully complete its DATA transfer but the file would "mysteriously " have 1 or more bit error.

It was a time that we took FTP integrity for granted.

Even rsync failed. Had to fallback to XMODEM-16, et. al., then.