'Syncronise to continue your music subscription' problem

I have just bought an e260. I have transfered several albulms successfully on my works pc. However, when using my home laptop after transferring several more they all come up with ‘synchronise to continue your music subscription’ and will not play. Can anyone help?

maybe you ripped them with the copy-protect option on. Its a setting inside of WMP.

You can go to tools>settings>Rip Music Tab in windows media player and you should see a “copy protect” check box, did it have the check in it when you ripped the cds?