CRC and Binary Compare - need explanation

I am new to beyond compare (in evaluation stage) and am comparing files with CRC and size set in comparison control. Why do some of my files show not Equal by CRC but show equal by binary comparison? One set of files is local to my PC hard drive the other set is on another computer I am linked to by FTP.

Thanks

Bob R

Is the remote system Unix/Linux? If so, and the files are ASCII, the CRC differences my be due to the PC files using CR/LF to end lines and the remote versions just using CR.