Audio download file name

Can someone explain the mp3 file naming system for downloaded audio episodes of The Tech Guy? I download several episodes at a time to listen to on the road. They used to have logical file names, like ttg1762.mp3 but now that episode is called TWI7120879775.mp3
This makes it difficult to figure out which was the last episode I downloaded the last time, so I know where to start downloading the new batch.
Thanks for your help

The filenames follow a naming convention as needed for the systems they use for distribution.

Please see:

That answers my question. Thank you for your quick reply!
Guess I’ll have to use a podcast app to download episodes, then drag them on to the usb key I use in my truck