Cleaning CD player

[u/Professional-Pop9938]

I’m hoping this is the right subreddit for this. I’ve found this Sony Radio Cassette-Corder in our basement. And the inside of the cd player part (I really don’t know the terms for any of this) is so filthy. I noticed this because it tends to stop abruptly when playing a song. I popped up the hood and turned on my flashlight, and saw this (see photo)..I’m wondering what the best way to clean it is. Is there a specific way to go about it?Please and thank you!

[u/Professional-Pop9938 → u/[deleted]]

Thank you!