Liteon ltc 4816 "disc quality" doesnt work?

Hello!
I burned a duallayer dvd with DVR-K16LA (crossflashed to K16M Sony Vaio 1.10 fw). Then, when i wanted to test the quality of the disc with my quite ancient dvd reader - Liteon ltc 4816, it gave me these results within the first 3 seconds:

Is this a known bug for this drive or what should I do? This is discinfo output:

DISCINFO VERSION   : 1.7.0 BETA.12
VENDOR             : LITE-ON 
MODEL              : COMBO LTC-48161H
REVISION           : KH0R
LOADING MECHANISM  : Tray
NUMBER VOL. LEVELS : 255
BUFFER SIZE        : 2048KB
INTERFACE          : ATAPI
RPC2 SCHEME        : YES
STATUS             : Not Set
USER CHANGES       : 5
VENDOR CHANGES     : 4
CURRENT REGION     : Not Set
ANALOG AUDIO PLAY  : YES
COMPOSITE OUTPUT   : YES
DIGITAL PORT-PORT1 : YES
DIGITAL PORT-PORT2 : NO
READ UPC CODE      : YES
MULTISESSION READ  : YES
MODE 2 FORM 1      : YES
MODE 2 FORM 2      : YES
READ ISRC CODE     : YES
READ BAD CODE      : NO
BUFFER UNDER-RUN   : YES
MT. RAINIER        : YES
CAN READ CDR       : YES
CAN READ CDRW      : YES
CAN READ CDRM2     : YES
CAN WRITE CDR      : YES
CAN WRITE CDRW     : YES
CAN TEST WRITE     : YES
CAN READ DVD-ROM   : YES
CAN READ DVD-R     : YES
CAN READ DVD-RW    : YES
CAN READ DVD-RAM   : NO
CAN READ DVD+R     : YES
CAN READ DVD+RW    : YES
CAN WRITE DVD-R    : NO
CAN WRITE DVD-RW   : NO
CAN WRITE DVD-RAM  : NO
CAN WRITE DVD+R    : NO
CAN WRITE DVD+RW   : NO
MAX CDR READ SPEED : 31
MAX CDR WRITE SPEED: 48