Unable to organize /sort language lessons

I transferred language lessons onto my m230, and painstakingly numbered them chronologically (using the 100, 200 and 300 series so I didn’t duplicate any numbers).  When I listen to the lessons on the m230, they are not in any order.  It gets really confusing since I am trying to learn 2 languages.  I’m not limited to tranferring music, am I?  Thanks for any help.

Have a look here:


Duplicate.Please continue thread in link provided by kayjay.