maximum length for audio cable?

Hi all. I have a media player upstairs that streams video and audio from my PC to my TV set. It works great. But sometimes, when playing music, I want to feed the audio out from the media player into my downstairs stereo system. The distance from media player to stereo is about 25 feet. If I buy some 25 foot rca-rca shielded patch cords, will that be OK? Or is the distance too long? Thanks for any advice, Richard