hi friends plz help me.
audio rate is very slow and system also. when i copying any data from cd's or dvd's. and writing the data to the cd's or dvd's
what is the problem.
But solved that problem with new installation.

Most of the time the slowness is caused by low memory or even spyware/malware. Make sure that your system is cleaned of any malware or spyware.

Another option is that you have applications running in the background while you are doing this. shut down the other applications..

A bad harddrive or a full drive can also have this effect as well as outdated drivers for the motherboard controllers.

A lot of bad registry entries as well can slow you down.

A classic fix: find a GOOD defreg app and ncleaner. Your system should be in top gear in no time! look for these on google. all free too if youre worried about cost. XD