Digital Playback of Audio

yopu might want to take a look at how much you have in your computer because a little more might add a buffer. Another thing yea it could be the sound card depenses on what card you have. Also look for the new driver for the sound card and the new media player.
questions.
what sounds card do you have?
what speakers do you have?
how much ram do you have?
when did you update the drivers?
what version of media player do you have?

This behavior occurs because the CD-ROM does not support digital playback.
You could try to configure Windows Media Player to use Error Correction.
To configure Windows Media Player 7 or 7.1 to use Error Correction during CD-ROM playback, follow these steps:
Start Windows Media Player 7 or 7.1.
In Full mode, on the Tools menu, click Options.
Click the CD Audio tab.
In the Playback Settings section, click Use error correction.
To configure Windows Media Player for Windows XP and Windows Media Player 9 Series to use Error Correction during CD-ROM playback, follow these steps:
Start Windows Media Player.
In Full mode, on the Tools menu, click Options.
Click the Devices tab, and then click Properties for the CD-ROM or DVD-ROM drive you are using for playback.
In the Playback Settings section, click Use error correction.
If the sound distortion behavior continues after you configure Windows Media Player to use Error Correction, configure Windows Media Player to use analog playback.

To do so in Windows Media Player 7 or 7.1, use the following steps:
Start Windows Media Player.
In Full mode, on the Tools menu, click Options.
Click the CD Audio tab.
Click to clear the Digital Playback check box.
To do so in Windows Media Player for Windows XP and Windows Media Player 9 Series, use the following steps:
Start Windows Media Player.
In Full mode, on the Tools menu, click Options.
Click the Devices tab, and then click Properties for the CD-ROM or DVD-ROM drive you are using for playback.
In the Playback Settings section, click Analog.

If all else fails My Computer\right-click CD ROM\Properties\Hardware\highlight the CD ROM and click Properties\click Properties tab and uncheck Digital CD option

http://support.microsoft.com/default.aspx?scid=kb;en-us;266035 try that page it will tell you on how to enable digital play back. You might also want to look at your sound card to see if its got ditgital play back as well. but if you have ONboard sound and a sound card make sure that the onboard sound is turned off in the bios.