Atari 800 Emulator .CAS Files - can they be played in RetroPie?

[fsd2s]

For the Atari 800 Emulator in RetroPie, can I play .CAS (cassette) file games?

I see there is an option to load cassette images in Atari 800 Emulator but I dont know how to get it to work.

I am trying to play STAR LEAGUE BASEBALL in a .CAS file - cassette file.
I have successfully gotten the game's loading screen it says STAR LEAGUE BASEBALL IS LOADING, but it just stays that way, never loads.

What is the proper procedure for loading a cassette game?

I just want to add, that all the games I want to play are available in cartridge and disk files, I however as a kid played them as cassettes, and so I'm just trying to recreate the experience and load .CAS files.

Thanks in advance if anyone can help.

[massatomic]

That file type is not listed in the wiki so i pressume not

https://github.com/retropie/retropie-setup/wiki/Atari-800-and-5200

Etaprime did a great video tutorial on this system if you are having trouble with the setting up of the bios

[future.child]

The emulator itself supports both raw and .cas images.
I do not believe the scraper supports adding these images, so you would have to create a playlist manually.

The emulators.cfg can be modified to include the following commands:
-tape <filename> Attach cassette image (CAS format or raw file)
-boottape <filename> Attach cassette image and boot it
-tape-readonly Set the attached cassette image as read-only

I'd imagine it could work with this content in emulators.cfg:
atari800="echo %ROM: -\ % > /dev/null;/opt/retropie/emulators/atari800/bin/atari800 -config /opt/retropie/configs/atari800/atari800.cfg -boottape %ROM%"
default = "atari800"

Please note that i have not tried this myself.