TRSDOS emulator file name weirdness

While trying to load a binary file into TRSDOS, I kept getting FILE SPEC REQUIRED. Down below it now says WHAT? But at 1st and repeatedly said FILE SPEC REQUIRED. I guess it got tired of telling me the same thing.

DIR :1


FILE DIRECTORY --- DRIVE 1     TRSDOS   -- 01/29/80 
                                                    
SUPSTRKG            ASTRDMW1/CMD        ASTRDMW6/CMD
ASTRDMW4/CMD        ASTRDMW3/CMD        ASTRDMW2/CMD
                                                    
                                                    
DOS READY                                           
LOAD ASTRDMW1/CMD         Pasted by CTRL-v                     
WHAT?                     This happened immediately!                     
                                                    
DOS READY                                           
LOAD ASTRDMW1/CMD         Same as above but...manually typed in!

DOS READY                 After a few seconds...Success
                                           
BASIC                     Enter disk Basic
HOW MANY FILES?                   
MEMORY SIZE?                      
RADIO SHACK DISK BASIC VERSION 2.2
READY                             
>LOAD "ASTRDMW1/BAS"       Made-up name...but it looked for it!
FILE NOT FOUND             A few seconds later!                    
READY                             
>_ 

BTW. I was just testing the LOAD. You actually just type the name program/CMD…not necessary to type the /CMD. Also not sure why there are so many similar filenames with a sequence #, on a disk like…
ASTRDMW1/CMD
ASTRDMW2/CMD
ASTRDMW3/CMD
etc.

The Galaxy Invasion zip contains…
galinv1a.cmd through galinv1m.cmd
But it looks like I copied just galinv1b.cmd and it appears to work