windows 7 media player, all tracks have straches at the end, why?

just before each and every audio track ends ( few seconds before the end of each audio track i hear straches), why? how can i fix that. its irritating.

my note ook is Windows 7 Home Basic, 64bit service pack 1,
Manufacturer: ACER
Model : Aspire 5253
Processor : AMD E-350 1.60 Ghz
Ram :5 GB

Try playing the same tracks in another media player like WinAmp or The KMPlayer to find out if you cal still hear the scratches and then let have the results.

all other media play accurately smooth eg VLC media player, except Windows Media Player.

May be uninstalling and then reinstalling the WMP shall repair this problem. As WMP is not my preferred Media Player, I hardly almost never use it.