Not all MP3's are recognized

Loaded some new mp3's on a memory stick. If I am in my '13 Camaro they get recognized no problem. My 4runner is not seeing them all. Any idea what might be going on?

 

I’ve been playing with memory sticks as well. It seems the 4Runner is picky about folder structure, bit rate, and tags. It’s also picky about the formatting of the memory stick, but if your truck is seeing the memory stick you’ve cleared that hurdle. Have a look in the audio system manual.

 

I'll take another look in there, thanks. As much as I love my 4runner, I wish it had the audio tech of my 9year old Chevy!