I purchased a 2009 M35 recently, and it has a slot for a memory card. But what exactly is the card I need to buy? Anyone know? Plus how would I add music to it? Links would be helpful! The guy who sold it to me doesn't know. It's seems a bit archaic, so its not a usb or micro sd card for sure...

 

The slot you are asking about is for a compact flash card. To add music to your HD just rip a CD to it