It's not that simple. Professional burning software and equipment are needed for mass burning. CDs are cheap and easy to burn. It is difficult to burn music with good sound quality, just like you want to burn something in different tracks. Your music resources are also very important. You can put some light music or sad light music in the car. Or DJ lovers, dance music. But most of them are light music, and the sound quality of the sound source is also very important. Of course, 320kbps goes without saying.

Even weaker. Does the landlord rely on five or six hundred people to pay tribute to eat? Not many people listen to CDs now. If you want to sell CDs, you should sell those whose sound quality exceeds that of the USB flash drive SD card. Personally, if you can't surpass the card, there will be no money. But the landlord wants to try. I can provide 320kbps dance music resources.