I've got the Yamaha- NO PROBLEMS. I heard of all the problems before I bought it also. The drive installs itself- power up, insert Adaptec Easy CD creator CD and go. Test the drive first as recommended in the handbook. I did not even upgrade the firmware or Easy CD Creator- used what came in the box (4.03d). The drive does only start at 12X in the inner edge and reaches 16X at the outer edge, but people- it only takes me 5.5 min from the time I press "create cd" till it spits my full 700mb cdr out completed- NO errors. Sambai- as far as copying CD to CD, your CDROM must be capable of extracting the data as fast as 16X- most are not. I've got a 52X creative and it wont extract at 8X!!! Test your Kenwood to see what it is capable of under Cd Creator, then when your Yamaha wont transfer at that rate- complain.