Protection
IS Key2Audio - should seem obvious by now, but just stating it 1 more time 2 make sure U get it..
Your backup is not 1:1 and this definitely is due to failed reading.
U must be having the Pioneer 106S model or something. A good DVD reader, but has a VERY short lifespan, and is not recommended for CloneCD (cannot read full 96 bytes of subchannel data, and cannot
rip Key2Audio v3 - may still copy it, though...)
I told U in the previous post NOT to use default CloneCD settings, but recommended CLONYX settings for Key2Audio instead

. However as I also said : in CloneCD's read options, the 'only read first session' box must
NOT be ticked.
Should the backup fail (most probably due to incorrect reading) I suggest U try at first updating the Pioneer's firmware
here, and if this still doesn't work, then read with the burner instead - but once again this depends on the burner brand & firmware version.