Problems with audio CD's
 

99% of my copied audio CD's has some annoying sounds on them... there's a "scratching" noise on some of tracks. The noises last from 0.1 to 10 seconds and when I copy a new CD, it's always there. I've tried a lot of different types of CD-R's but it doesn't work... (Medion, Maxell, Kodak, TDK..)
I have a Medion CD-R/CD-RW writer...

MAybe you can try different recording speed.I think high speed(>4x) is better.

Audio CD to Audio CD
Have you tried extracting the audio (to a .wav) from the cd you are trying to copy from? If the wav file created has the same problem then the problem is that the drive u are reading the cd with has poor audio extraction, which is common, especialy in older drives.
If this isnt the case, then i dont know what to sugest (though a last ditch possibility would be to try making a cd image and burning from that, but i dont think that would help anything)
-Az

I've had the same prob

you must to a fly to fly copy
it removes any prob of CD burning

You can also use the transfert to Wav file of your audio CD and then record the Wav files to your new cd but it takes much more time
bye