> I am using Redhat 7.1 on Compaq Presario 1655 laptop. It plays all music CD well. But when I try to play mp3 using xmms, it comes out with the following warning
> 
> Couldn't open audio
> 
> Please check the following
> 1. You have the correct plugin selected
> 2. No other program is blocking the soundcard
> 3. soundacrd is configured correctly
> 
> For. 1. eSound Output plugin is selected. That was the default, I don't know what other ones I could select
> 
> 2. No Nothing is palying
> 
> 3. gtcd could play any cd. So, soundcard is configured correct.

CD sound doesn't really require the soundcard to be configured since the CD-ROM
is doing the work of playing the music CD and just sending the output to a
direct hookup with the speakers.

I would check /etc/conf.modules or /etc/modules.conf and make sure that it has
the options for your soundcard.  If not (assuming Redhat) use sndconfig to set
it up as root.