Wenzhuo now mi cd works but i have and other problem with de DMA, that is 
because after i do the instruction of the comment #10, the DMA is turn off
[EMAIL PROTECTED]:/etc$ hdparm /dev/hda 

/dev/hda:
 IO_support    =  0 (default 16-bit)
 unmaskirq     =  0 (off)
 using_dma     =  0 (off)
 keepsettings  =  0 (off)
 readonly      =  0 (off)
 readahead     = 256 (on)
 HDIO_GETGEO failed: Inappropriate ioctl for device

so i try to ways to enable.
1.- [EMAIL PROTECTED]:/etc$ sudo hdparm -d 1 /dev/hda

/dev/hda:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma     =  0 (off)

2.- i try to modify the [EMAIL PROTECTED]:/etc$ sudo gedit /etc/hdparm.conf
and dont works

How can i fix this problem.

-- 
feisty doesn't work with external CD writers anymore
https://bugs.launchpad.net/bugs/109211
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