A:AnswerYes you can use the TOSlink Optical Out to connect to a receiver if it has an Optical In Port, but there are less expensive and/or simpler ways to do it. BB sells an Onkyo 6-disc changer: https://www.bestbuy.com/site/onkyo-6-disc-cd-player-black/6762924.p?skuId=6762924
Any DVD player with RCA audio outputs will work. If your receiver has an Optical In or Digital Coax audio input, a DVD player with a matching port out will also work.
A:AnswerI've played music CDs on it with no trouble. I have not tried to play a homemade mp3 CD on this one, but I have on previous blu ray players (as well as mp3 DVDs.)
A:AnswerWe would need more information in order to have a better understanding of your inquiry. If you’re open to discussing it further, please contact Support Team via Live Chat on the Panasonic Website, Contact Us option, Mon-Fri, 9am-5pm EST. -M