Wmp can't read .wma file

i have a few songs in .wma format but wmp can’t read it. the error msg is “windows media player cannot play the file. the player might not support the file type or might not support the codec that was used to compress the file.” however, i have other .wma files that were able to b played on wmp. anyone knows wat is the prob n how to fix it?

Why not try to change the fromat from wma to mp3?