No more iTunes? How to transfer regular mp3 files onto a new iphone?

I just bought my first iphone, & have several hundred CDs burned onto my laptop's hard drive via Window's Media Player. Is there a way to convert these to be compatible with itunes & use on my iphone, or do I need to stick with my non-Apple mp3 player?

ITunes is replaced/gone only if your computer is running macOS Catalina (10.15). ITunes currently remains on Windows and will sync with the new Music app on iOS.

& have several hundred CDs burned onto my laptop's hard drive via Window's Media Player. Is there a way to convert these to be compatible with itunes & use on my iphone, or do I

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