How does a portable music player know when the user stops paying for a music service?

Suppose I pay for one month of of one of those unlimited music services, like Yahoo for example, and download 60 gigabytes of music onto my supported player. I never pay again after the first month, and the subscription runs out. How does the player know?

Does one have to reconnect it every month and if it doesn’t get some kind of update from the service it stops playing the music it got from that service?

The license contains information about the date. I just had problems getting my player to work because I hadn’t checked that the date was correct. I use Napster, and if I open Windows Media Player and go to the properties for a sing, the last tab will tell me various things about my license, such as when my subscription is up, how many times I can sync it to my player for the month, whether it can be burned to a CD, etc.

And yes, I have to connect it every month, or the files stop working completely.

However, I should add that while the date clearly matters (because my files wouldn’t work until I fixed the date), I’ve synced it on the last day of my subscription period, and the files worked for 30 days after that without another resync.

Thanks for the info. What player do you have?

I have an iRiver 320.